# -------------------------------------------------------------------- # USE OF NOAA ESRL DATA # # These data are made freely available to the public and the # scientific community in the belief that their wide dissemination # will lead to greater understanding and new scientific insights. # The availability of these data does not constitute publication # of the data. NOAA relies on the ethics and integrity of the user to # assure that ESRL receives fair credit for their work. If the data # are obtained for potential use in a publication or presentation, # ESRL should be informed at the outset of the nature of this work. # If the ESRL data are essential to the work, or if an important # result or conclusion depends on the ESRL data, co-authorship # may be appropriate. This should be discussed at an early stage in # the work. Manuscripts using the ESRL data should be sent to ESRL # for review before they are submitted for publication so we can # insure that the quality and limitations of the data are accurately # represented. # # Contact: Pieter Tans (303 497 6678; pieter.tans@noaa.gov) # # File Creation: Fri Oct 7 09:24:59 2011 # # RECIPROCITY # # Use of these data implies an agreement to reciprocate. # Laboratories making similar measurements agree to make their # own data available to the general public and to the scientific # community in an equally complete and easily accessible form. # Modelers are encouraged to make available to the community, # upon request, their own tools used in the interpretation # of the ESRL data, namely well documented model code, transport # fields, and additional information necessary for other # scientists to repeat the work and to run modified versions. # Model availability includes collaborative support for new # users of the models. # -------------------------------------------------------------------- # # # See www.esrl.noaa.gov/gmd/ccgg/trends/ for additional details. # # Data from March 1958 through April 1974 have been obtained by C. David # Keeling # of the Scripps Institution of Oceanography (SIO) and were obtained from # the # Scripps website (scrippsco2.ucsd.edu). # # The "average" column contains the monthly mean CO2 mole fraction # determined # from daily averages. The mole fraction of CO2, expressed as parts per # million # (ppm) is the number of molecules of CO2 in every one million molecules of # dried # air (water vapor removed). If there are missing days concentrated either # early # or late in the month, the monthly mean is corrected to the middle of the # month # using the average seasonal cycle. Missing months are denoted by -99.99. # The "interpolated" column includes average values from the preceding # column # and interpolated values where data are missing. Interpolated values are # computed in two steps. First, we compute for each month the average # seasonal # cycle in a 5-year window around each monthly value. In this way the # seasonal # cycle is allowed to change slowly over time. We then determine the # "trend" # value for each month by removing the seasonal cycle; this result is shown # in # the "trend" column. Trend values are linearly interpolated for missing # months. # The interpolated monthly mean is then the sum of the average seasonal # cycle # value and the trend value for the missing month. # # NOTE: In general, the data presented for the last year are subject to # change, # depending on recalibration of the reference gas mixtures used, and other # quality # control procedures. Occasionally, earlier years may also be changed for # the same # reasons. Usually these changes are minor. # # CO2 expressed as a mole fraction in dry air, micromol/mol, abbreviated as # ppm # # (-99.99 missing data; -1 no data for #daily means in month) # # decimal average interpolated trend #days # date (season corr) 1958 3 1958.208 315.71 315.71 314.61 -1 1958 4 1958.292 317.45 317.45 315.29 -1 1958 5 1958.375 317.50 317.50 314.71 -1 1958 6 1958.458 -99.99 317.10 314.85 -1 1958 7 1958.542 315.86 315.86 314.98 -1 1958 8 1958.625 314.93 314.93 315.94 -1 1958 9 1958.708 313.20 313.20 315.91 -1 1958 10 1958.792 -99.99 312.66 315.61 -1 1958 11 1958.875 313.33 313.33 315.31 -1 1958 12 1958.958 314.67 314.67 315.62 -1 1959 1 1959.042 315.62 315.62 315.70 -1 1959 2 1959.125 316.38 316.38 315.88 -1 1959 3 1959.208 316.71 316.71 315.61 -1 1959 4 1959.292 317.72 317.72 315.56 -1 1959 5 1959.375 318.29 318.29 315.50 -1 1959 6 1959.458 318.15 318.15 315.92 -1 1959 7 1959.542 316.54 316.54 315.66 -1 1959 8 1959.625 314.80 314.80 315.81 -1 1959 9 1959.708 313.84 313.84 316.55 -1 1959 10 1959.792 313.26 313.26 316.19 -1 1959 11 1959.875 314.80 314.80 316.78 -1 1959 12 1959.958 315.58 315.58 316.52 -1 1960 1 1960.042 316.43 316.43 316.51 -1 1960 2 1960.125 316.97 316.97 316.47 -1 1960 3 1960.208 317.58 317.58 316.48 -1 1960 4 1960.292 319.02 319.02 316.86 -1 1960 5 1960.375 320.03 320.03 317.24 -1 1960 6 1960.458 319.59 319.59 317.36 -1 1960 7 1960.542 318.18 318.18 317.30 -1 1960 8 1960.625 315.91 315.91 316.92 -1 1960 9 1960.708 314.16 314.16 316.87 -1 1960 10 1960.792 313.83 313.83 316.76 -1 1960 11 1960.875 315.00 315.00 316.98 -1 1960 12 1960.958 316.19 316.19 317.13 -1 1961 1 1961.042 316.93 316.93 317.04 -1 1961 2 1961.125 317.70 317.70 317.28 -1 1961 3 1961.208 318.54 318.54 317.47 -1 1961 4 1961.292 319.48 319.48 317.27 -1 1961 5 1961.375 320.58 320.58 317.70 -1 1961 6 1961.458 319.77 319.77 317.48 -1 1961 7 1961.542 318.57 318.57 317.70 -1 1961 8 1961.625 316.79 316.79 317.80 -1 1961 9 1961.708 314.80 314.80 317.49 -1 1961 10 1961.792 315.38 315.38 318.35 -1 1961 11 1961.875 316.10 316.10 318.13 -1 1961 12 1961.958 317.01 317.01 317.94 -1 1962 1 1962.042 317.94 317.94 318.06 -1 1962 2 1962.125 318.56 318.56 318.11 -1 1962 3 1962.208 319.68 319.68 318.57 -1 1962 4 1962.292 320.63 320.63 318.45 -1 1962 5 1962.375 321.01 321.01 318.20 -1 1962 6 1962.458 320.55 320.55 318.27 -1 1962 7 1962.542 319.58 319.58 318.67 -1 1962 8 1962.625 317.40 317.40 318.48 -1 1962 9 1962.708 316.26 316.26 319.03 -1 1962 10 1962.792 315.42 315.42 318.33 -1 1962 11 1962.875 316.69 316.69 318.62 -1 1962 12 1962.958 317.69 317.69 318.61 -1 1963 1 1963.042 318.74 318.74 318.91 -1 1963 2 1963.125 319.08 319.08 318.68 -1 1963 3 1963.208 319.86 319.86 318.69 -1 1963 4 1963.292 321.39 321.39 319.09 -1 1963 5 1963.375 322.25 322.25 319.39 -1 1963 6 1963.458 321.47 321.47 319.16 -1 1963 7 1963.542 319.74 319.74 318.76 -1 1963 8 1963.625 317.77 317.77 318.83 -1 1963 9 1963.708 316.21 316.21 319.06 -1 1963 10 1963.792 315.99 315.99 319.00 -1 1963 11 1963.875 317.12 317.12 319.10 -1 1963 12 1963.958 318.31 318.31 319.25 -1 1964 1 1964.042 319.57 319.57 319.67 -1 1964 2 1964.125 -99.99 320.07 319.61 -1 1964 3 1964.208 -99.99 320.73 319.55 -1 1964 4 1964.292 -99.99 321.77 319.48 -1 1964 5 1964.375 322.25 322.25 319.42 -1 1964 6 1964.458 321.89 321.89 319.69 -1 1964 7 1964.542 320.44 320.44 319.58 -1 1964 8 1964.625 318.70 318.70 319.81 -1 1964 9 1964.708 316.70 316.70 319.56 -1 1964 10 1964.792 316.79 316.79 319.79 -1 1964 11 1964.875 317.79 317.79 319.72 -1 1964 12 1964.958 318.71 318.71 319.59 -1 1965 1 1965.042 319.44 319.44 319.48 -1 1965 2 1965.125 320.44 320.44 319.97 -1 1965 3 1965.208 320.89 320.89 319.65 -1 1965 4 1965.292 322.13 322.13 319.80 -1 1965 5 1965.375 322.16 322.16 319.36 -1 1965 6 1965.458 321.87 321.87 319.65 -1 1965 7 1965.542 321.39 321.39 320.51 -1 1965 8 1965.625 318.81 318.81 319.93 -1 1965 9 1965.708 317.81 317.81 320.68 -1 1965 10 1965.792 317.30 317.30 320.36 -1 1965 11 1965.875 318.87 318.87 320.87 -1 1965 12 1965.958 319.42 319.42 320.26 -1 1966 1 1966.042 320.62 320.62 320.62 -1 1966 2 1966.125 321.59 321.59 321.10 -1 1966 3 1966.208 322.39 322.39 321.16 -1 1966 4 1966.292 323.87 323.87 321.51 -1 1966 5 1966.375 324.01 324.01 321.18 -1 1966 6 1966.458 323.75 323.75 321.52 -1 1966 7 1966.542 322.39 322.39 321.49 -1 1966 8 1966.625 320.37 320.37 321.50 -1 1966 9 1966.708 318.64 318.64 321.54 -1 1966 10 1966.792 318.10 318.10 321.18 -1 1966 11 1966.875 319.79 319.79 321.84 -1 1966 12 1966.958 321.08 321.08 321.95 -1 1967 1 1967.042 322.07 322.07 322.07 -1 1967 2 1967.125 322.50 322.50 321.94 -1 1967 3 1967.208 323.04 323.04 321.72 -1 1967 4 1967.292 324.42 324.42 322.05 -1 1967 5 1967.375 325.00 325.00 322.27 -1 1967 6 1967.458 324.09 324.09 321.94 -1 1967 7 1967.542 322.55 322.55 321.66 -1 1967 8 1967.625 320.92 320.92 322.04 -1 1967 9 1967.708 319.31 319.31 322.19 -1 1967 10 1967.792 319.31 319.31 322.36 -1 1967 11 1967.875 320.72 320.72 322.78 -1 1967 12 1967.958 321.96 321.96 322.86 -1 1968 1 1968.042 322.57 322.57 322.55 -1 1968 2 1968.125 323.15 323.15 322.56 -1 1968 3 1968.208 323.89 323.89 322.59 -1 1968 4 1968.292 325.02 325.02 322.73 -1 1968 5 1968.375 325.57 325.57 322.87 -1 1968 6 1968.458 325.36 325.36 323.20 -1 1968 7 1968.542 324.14 324.14 323.25 -1 1968 8 1968.625 322.03 322.03 323.15 -1 1968 9 1968.708 320.41 320.41 323.31 -1 1968 10 1968.792 320.25 320.25 323.32 -1 1968 11 1968.875 321.31 321.31 323.32 -1 1968 12 1968.958 322.84 322.84 323.69 -1 1969 1 1969.042 324.00 324.00 323.98 -1 1969 2 1969.125 324.42 324.42 323.89 -1 1969 3 1969.208 325.64 325.64 324.41 -1 1969 4 1969.292 326.66 326.66 324.35 -1 1969 5 1969.375 327.34 327.34 324.57 -1 1969 6 1969.458 326.76 326.76 324.63 -1 1969 7 1969.542 325.88 325.88 325.07 -1 1969 8 1969.625 323.67 323.67 324.80 -1 1969 9 1969.708 322.38 322.38 325.28 -1 1969 10 1969.792 321.78 321.78 324.84 -1 1969 11 1969.875 322.85 322.85 324.78 -1 1969 12 1969.958 324.11 324.11 324.88 -1 1970 1 1970.042 325.03 325.03 325.04 -1 1970 2 1970.125 325.99 325.99 325.42 -1 1970 3 1970.208 326.87 326.87 325.69 -1 1970 4 1970.292 328.13 328.13 325.86 -1 1970 5 1970.375 328.07 328.07 325.27 -1 1970 6 1970.458 327.66 327.66 325.52 -1 1970 7 1970.542 326.35 326.35 325.51 -1 1970 8 1970.625 324.69 324.69 325.76 -1 1970 9 1970.708 323.10 323.10 325.93 -1 1970 10 1970.792 323.16 323.16 326.15 -1 1970 11 1970.875 323.98 323.98 325.96 -1 1970 12 1970.958 325.13 325.13 326.06 -1 1971 1 1971.042 326.17 326.17 326.26 -1 1971 2 1971.125 326.68 326.68 326.09 -1 1971 3 1971.208 327.18 327.18 325.94 -1 1971 4 1971.292 327.78 327.78 325.47 -1 1971 5 1971.375 328.92 328.92 326.11 -1 1971 6 1971.458 328.57 328.57 326.41 -1 1971 7 1971.542 327.34 327.34 326.46 -1 1971 8 1971.625 325.46 325.46 326.49 -1 1971 9 1971.708 323.36 323.36 326.18 -1 1971 10 1971.792 323.57 323.57 326.58 -1 1971 11 1971.875 324.80 324.80 326.82 -1 1971 12 1971.958 326.01 326.01 327.02 -1 1972 1 1972.042 326.77 326.77 326.86 -1 1972 2 1972.125 327.63 327.63 327.05 -1 1972 3 1972.208 327.75 327.75 326.52 -1 1972 4 1972.292 329.72 329.72 327.41 -1 1972 5 1972.375 330.07 330.07 327.21 -1 1972 6 1972.458 329.09 329.09 326.94 -1 1972 7 1972.542 328.05 328.05 327.24 -1 1972 8 1972.625 326.32 326.32 327.37 -1 1972 9 1972.708 324.93 324.93 327.73 -1 1972 10 1972.792 325.06 325.06 328.05 -1 1972 11 1972.875 326.50 326.50 328.50 -1 1972 12 1972.958 327.55 327.55 328.56 -1 1973 1 1973.042 328.54 328.54 328.58 -1 1973 2 1973.125 329.56 329.56 328.87 -1 1973 3 1973.208 330.30 330.30 328.99 -1 1973 4 1973.292 331.50 331.50 329.12 -1 1973 5 1973.375 332.48 332.48 329.60 -1 1973 6 1973.458 332.07 332.07 329.96 -1 1973 7 1973.542 330.87 330.87 330.10 -1 1973 8 1973.625 329.31 329.31 330.43 -1 1973 9 1973.708 327.51 327.51 330.43 -1 1973 10 1973.792 327.18 327.18 330.23 -1 1973 11 1973.875 328.16 328.16 330.17 -1 1973 12 1973.958 328.64 328.64 329.66 -1 1974 1 1974.042 329.35 329.35 329.44 -1 1974 2 1974.125 330.71 330.71 330.11 -1 1974 3 1974.208 331.48 331.48 330.19 -1 1974 4 1974.292 332.65 332.65 330.25 -1 1974 5 1974.375 333.19 333.19 330.25 15 1974 6 1974.458 332.12 332.12 329.93 27 1974 7 1974.542 330.99 330.99 330.20 31 1974 8 1974.625 329.17 329.17 330.31 31 1974 9 1974.708 327.41 327.41 330.35 29 1974 10 1974.792 327.21 327.21 330.29 29 1974 11 1974.875 328.34 328.34 330.33 29 1974 12 1974.958 329.50 329.50 330.47 31 1975 1 1975.042 330.68 330.68 330.81 31 1975 2 1975.125 331.41 331.41 330.86 28 1975 3 1975.208 331.85 331.85 330.49 26 1975 4 1975.292 333.29 333.29 330.77 30 1975 5 1975.375 333.91 333.91 330.94 30 1975 6 1975.458 333.40 333.40 331.18 29 1975 7 1975.542 331.74 331.74 330.92 27 1975 8 1975.625 329.88 329.88 331.06 31 1975 9 1975.708 328.57 328.57 331.54 30 1975 10 1975.792 328.36 328.36 331.46 17 1975 11 1975.875 329.33 329.33 331.39 25 1975 12 1975.958 -99.99 330.59 331.60 1 1976 1 1976.042 331.66 331.66 331.82 25 1976 2 1976.125 332.75 332.75 332.19 29 1976 3 1976.208 333.46 333.46 331.99 29 1976 4 1976.292 334.78 334.78 332.24 25 1976 5 1976.375 334.78 334.78 331.86 31 1976 6 1976.458 334.06 334.06 331.74 25 1976 7 1976.542 332.95 332.95 332.06 21 1976 8 1976.625 330.64 330.64 331.87 31 1976 9 1976.708 328.96 328.96 331.94 28 1976 10 1976.792 328.77 328.77 331.92 30 1976 11 1976.875 330.18 330.18 332.33 26 1976 12 1976.958 331.65 331.65 332.69 24 1977 1 1977.042 332.69 332.69 332.75 29 1977 2 1977.125 333.23 333.23 332.60 26 1977 3 1977.208 334.97 334.97 333.36 29 1977 4 1977.292 336.03 336.03 333.39 29 1977 5 1977.375 336.82 336.82 333.87 30 1977 6 1977.458 336.10 336.10 333.76 25 1977 7 1977.542 334.79 334.79 333.96 28 1977 8 1977.625 332.53 332.53 333.92 30 1977 9 1977.708 331.19 331.19 334.27 27 1977 10 1977.792 331.21 331.21 334.43 30 1977 11 1977.875 332.35 332.35 334.59 28 1977 12 1977.958 333.47 333.47 334.48 31 1978 1 1978.042 335.10 335.10 335.11 26 1978 2 1978.125 335.26 335.26 334.58 28 1978 3 1978.208 336.61 336.61 334.95 30 1978 4 1978.292 337.77 337.77 335.11 28 1978 5 1978.375 338.00 338.00 335.05 30 1978 6 1978.458 337.98 337.98 335.60 27 1978 7 1978.542 336.48 336.48 335.68 31 1978 8 1978.625 334.37 334.37 335.88 31 1978 9 1978.708 332.33 332.33 335.49 24 1978 10 1978.792 332.41 332.41 335.66 31 1978 11 1978.875 333.76 333.76 336.01 28 1978 12 1978.958 334.83 334.83 335.79 31 1979 1 1979.042 336.21 336.21 336.23 31 1979 2 1979.125 336.65 336.65 335.94 27 1979 3 1979.208 338.13 338.13 336.40 29 1979 4 1979.292 338.95 338.95 336.21 24 1979 5 1979.375 339.01 339.01 336.01 20 1979 6 1979.458 339.20 339.20 336.79 30 1979 7 1979.542 337.60 337.60 336.78 29 1979 8 1979.625 335.56 335.56 337.10 29 1979 9 1979.708 333.93 333.93 337.17 26 1979 10 1979.792 334.12 334.12 337.44 28 1979 11 1979.875 335.26 335.26 337.54 30 1979 12 1979.958 336.78 336.78 337.76 24 1980 1 1980.042 337.80 337.80 337.95 30 1980 2 1980.125 338.28 338.28 337.73 28 1980 3 1980.208 340.04 340.04 338.43 31 1980 4 1980.292 340.86 340.86 338.20 30 1980 5 1980.375 341.47 341.47 338.45 31 1980 6 1980.458 341.26 341.26 338.79 30 1980 7 1980.542 339.34 339.34 338.48 26 1980 8 1980.625 337.45 337.45 338.92 24 1980 9 1980.708 336.10 336.10 339.27 26 1980 10 1980.792 336.05 336.05 339.32 29 1980 11 1980.875 337.21 337.21 339.38 27 1980 12 1980.958 338.29 338.29 339.23 27 1981 1 1981.042 339.36 339.36 339.41 31 1981 2 1981.125 340.51 340.51 339.89 28 1981 3 1981.208 341.57 341.57 339.98 31 1981 4 1981.292 342.56 342.56 339.93 30 1981 5 1981.375 343.01 343.01 339.98 31 1981 6 1981.458 342.49 342.49 340.02 28 1981 7 1981.542 340.68 340.68 339.81 31 1981 8 1981.625 338.49 338.49 339.97 28 1981 9 1981.708 336.92 336.92 340.17 30 1981 10 1981.792 337.12 337.12 340.44 31 1981 11 1981.875 338.59 338.59 340.76 30 1981 12 1981.958 339.90 339.90 340.81 28 1982 1 1982.042 340.92 340.92 341.03 30 1982 2 1982.125 341.69 341.69 341.06 27 1982 3 1982.208 342.85 342.85 341.21 21 1982 4 1982.292 343.92 343.92 341.30 9 1982 5 1982.375 344.67 344.67 341.63 31 1982 6 1982.458 343.78 343.78 341.33 29 1982 7 1982.542 342.23 342.23 341.45 28 1982 8 1982.625 340.11 340.11 341.61 27 1982 9 1982.708 338.32 338.32 341.53 26 1982 10 1982.792 338.39 338.39 341.72 30 1982 11 1982.875 339.48 339.48 341.62 28 1982 12 1982.958 340.88 340.88 341.77 31 1983 1 1983.042 341.64 341.64 341.79 31 1983 2 1983.125 342.87 342.87 342.30 27 1983 3 1983.208 343.59 343.59 342.04 30 1983 4 1983.292 345.25 345.25 342.63 26 1983 5 1983.375 345.96 345.96 342.80 29 1983 6 1983.458 345.52 345.52 343.03 25 1983 7 1983.542 344.15 344.15 343.42 30 1983 8 1983.625 342.25 342.25 343.72 28 1983 9 1983.708 340.17 340.17 343.34 27 1983 10 1983.792 340.30 340.30 343.63 31 1983 11 1983.875 341.53 341.53 343.66 29 1983 12 1983.958 343.07 343.07 343.97 26 1984 1 1984.042 344.05 344.05 344.15 31 1984 2 1984.125 344.77 344.77 344.21 29 1984 3 1984.208 345.46 345.46 344.00 23 1984 4 1984.292 -99.99 346.77 344.17 2 1984 5 1984.375 347.55 347.55 344.35 27 1984 6 1984.458 346.98 346.98 344.49 25 1984 7 1984.542 345.55 345.55 344.82 29 1984 8 1984.625 343.20 343.20 344.67 24 1984 9 1984.708 341.35 341.35 344.54 27 1984 10 1984.792 341.68 341.68 344.99 28 1984 11 1984.875 343.06 343.06 345.16 28 1984 12 1984.958 344.55 344.55 345.42 28 1985 1 1985.042 345.25 345.25 345.35 29 1985 2 1985.125 346.06 346.06 345.51 26 1985 3 1985.208 347.66 347.66 346.27 28 1985 4 1985.292 348.20 348.20 345.64 27 1985 5 1985.375 348.92 348.92 345.75 31 1985 6 1985.458 348.40 348.40 345.94 30 1985 7 1985.542 346.66 346.66 345.86 28 1985 8 1985.625 344.85 344.85 346.22 27 1985 9 1985.708 343.20 343.20 346.32 27 1985 10 1985.792 343.08 343.08 346.36 27 1985 11 1985.875 344.40 344.40 346.53 29 1985 12 1985.958 345.82 345.82 346.75 29 1986 1 1986.042 346.54 346.54 346.56 26 1986 2 1986.125 347.13 347.13 346.59 26 1986 3 1986.208 348.05 348.05 346.71 31 1986 4 1986.292 349.77 349.77 347.21 30 1986 5 1986.375 350.53 350.53 347.39 30 1986 6 1986.458 349.90 349.90 347.47 24 1986 7 1986.542 348.11 348.11 347.30 26 1986 8 1986.625 346.09 346.09 347.49 29 1986 9 1986.708 345.01 345.01 348.16 25 1986 10 1986.792 344.47 344.47 347.71 30 1986 11 1986.875 345.86 345.86 347.99 30 1986 12 1986.958 347.15 347.15 348.06 30 1987 1 1987.042 348.38 348.38 348.31 30 1987 2 1987.125 348.70 348.70 348.01 28 1987 3 1987.208 349.72 349.72 348.31 27 1987 4 1987.292 351.32 351.32 348.77 30 1987 5 1987.375 352.14 352.14 349.03 31 1987 6 1987.458 351.61 351.61 349.23 29 1987 7 1987.542 349.91 349.91 349.20 28 1987 8 1987.625 347.84 347.84 349.34 27 1987 9 1987.708 346.52 346.52 349.71 29 1987 10 1987.792 346.65 346.65 349.88 30 1987 11 1987.875 347.95 347.95 350.07 27 1987 12 1987.958 349.18 349.18 350.07 30 1988 1 1988.042 350.38 350.38 350.36 29 1988 2 1988.125 351.68 351.68 351.01 27 1988 3 1988.208 352.24 352.24 350.76 30 1988 4 1988.292 353.66 353.66 351.00 30 1988 5 1988.375 354.18 354.18 350.99 31 1988 6 1988.458 353.68 353.68 351.30 29 1988 7 1988.542 352.58 352.58 351.94 30 1988 8 1988.625 350.66 350.66 352.19 27 1988 9 1988.708 349.03 349.03 352.22 29 1988 10 1988.792 349.08 349.08 352.34 31 1988 11 1988.875 350.15 350.15 352.29 27 1988 12 1988.958 351.44 351.44 352.36 30 1989 1 1989.042 352.89 352.89 352.83 31 1989 2 1989.125 353.24 353.24 352.55 28 1989 3 1989.208 353.80 353.80 352.36 30 1989 4 1989.292 355.59 355.59 352.93 30 1989 5 1989.375 355.89 355.89 352.65 31 1989 6 1989.458 355.30 355.30 352.88 30 1989 7 1989.542 353.98 353.98 353.33 31 1989 8 1989.625 351.53 351.53 353.11 29 1989 9 1989.708 350.02 350.02 353.26 28 1989 10 1989.792 350.29 350.29 353.53 30 1989 11 1989.875 351.44 351.44 353.60 30 1989 12 1989.958 352.84 352.84 353.78 28 1990 1 1990.042 353.79 353.79 353.73 30 1990 2 1990.125 354.88 354.88 354.20 28 1990 3 1990.208 355.65 355.65 354.21 31 1990 4 1990.292 356.27 356.27 353.66 29 1990 5 1990.375 357.29 357.29 354.10 30 1990 6 1990.458 356.32 356.32 353.92 30 1990 7 1990.542 354.88 354.88 354.27 29 1990 8 1990.625 352.89 352.89 354.51 30 1990 9 1990.708 351.28 351.28 354.53 27 1990 10 1990.792 351.59 351.59 354.81 31 1990 11 1990.875 353.05 353.05 355.10 29 1990 12 1990.958 354.27 354.27 355.12 30 1991 1 1991.042 354.87 354.87 354.85 29 1991 2 1991.125 355.68 355.68 355.01 28 1991 3 1991.208 357.06 357.06 355.58 27 1991 4 1991.292 358.51 358.51 355.88 30 1991 5 1991.375 359.09 359.09 355.94 31 1991 6 1991.458 358.10 358.10 355.75 30 1991 7 1991.542 356.12 356.12 355.51 29 1991 8 1991.625 353.89 353.89 355.50 31 1991 9 1991.708 352.30 352.30 355.58 30 1991 10 1991.792 352.32 352.32 355.55 31 1991 11 1991.875 353.79 353.79 355.78 30 1991 12 1991.958 355.07 355.07 355.89 31 1992 1 1992.042 356.17 356.17 356.12 30 1992 2 1992.125 356.93 356.93 356.23 29 1992 3 1992.208 357.82 357.82 356.28 29 1992 4 1992.292 359.00 359.00 356.30 30 1992 5 1992.375 359.55 359.55 356.33 31 1992 6 1992.458 359.32 359.32 356.92 30 1992 7 1992.542 356.85 356.85 356.27 30 1992 8 1992.625 354.91 354.91 356.61 30 1992 9 1992.708 352.93 352.93 356.27 29 1992 10 1992.792 353.31 353.31 356.57 30 1992 11 1992.875 354.27 354.27 356.32 30 1992 12 1992.958 355.53 355.53 356.37 31 1993 1 1993.042 356.86 356.86 356.84 28 1993 2 1993.125 357.27 357.27 356.43 28 1993 3 1993.208 358.36 358.36 356.70 31 1993 4 1993.292 359.27 359.27 356.60 30 1993 5 1993.375 360.19 360.19 357.00 31 1993 6 1993.458 359.52 359.52 357.09 30 1993 7 1993.542 357.42 357.42 356.83 27 1993 8 1993.625 355.46 355.46 357.14 28 1993 9 1993.708 354.10 354.10 357.45 26 1993 10 1993.792 354.12 354.12 357.46 30 1993 11 1993.875 355.40 355.40 357.53 30 1993 12 1993.958 356.84 356.84 357.76 31 1994 1 1994.042 358.22 358.22 358.13 27 1994 2 1994.125 358.98 358.98 358.15 27 1994 3 1994.208 359.91 359.91 358.25 30 1994 4 1994.292 361.32 361.32 358.57 30 1994 5 1994.375 361.68 361.68 358.44 30 1994 6 1994.458 360.80 360.80 358.39 30 1994 7 1994.542 359.39 359.39 358.79 31 1994 8 1994.625 357.42 357.42 359.12 31 1994 9 1994.708 355.63 355.63 359.05 30 1994 10 1994.792 356.09 356.09 359.50 31 1994 11 1994.875 357.56 357.56 359.72 30 1994 12 1994.958 358.87 358.87 359.75 31 1995 1 1995.042 359.87 359.87 359.76 31 1995 2 1995.125 360.79 360.79 359.98 28 1995 3 1995.208 361.77 361.77 360.19 30 1995 4 1995.292 363.23 363.23 360.56 30 1995 5 1995.375 363.77 363.77 360.61 29 1995 6 1995.458 363.22 363.22 360.82 30 1995 7 1995.542 361.70 361.70 361.03 31 1995 8 1995.625 359.11 359.11 360.74 30 1995 9 1995.708 358.11 358.11 361.48 30 1995 10 1995.792 357.97 357.97 361.34 31 1995 11 1995.875 359.40 359.40 361.54 30 1995 12 1995.958 360.61 360.61 361.49 30 1996 1 1996.042 362.04 362.04 361.84 31 1996 2 1996.125 363.17 363.17 362.29 29 1996 3 1996.208 364.17 364.17 362.55 31 1996 4 1996.292 364.51 364.51 361.81 29 1996 5 1996.375 365.16 365.16 362.10 31 1996 6 1996.458 364.93 364.93 362.64 30 1996 7 1996.542 363.53 363.53 362.83 31 1996 8 1996.625 361.38 361.38 362.99 30 1996 9 1996.708 359.60 359.60 363.03 28 1996 10 1996.792 359.54 359.54 362.91 31 1996 11 1996.875 360.84 360.84 362.99 30 1996 12 1996.958 362.18 362.18 363.05 31 1997 1 1997.042 363.04 363.04 362.85 31 1997 2 1997.125 364.09 364.09 363.28 28 1997 3 1997.208 364.47 364.47 362.86 31 1997 4 1997.292 366.25 366.25 363.59 29 1997 5 1997.375 366.69 366.69 363.76 30 1997 6 1997.458 365.59 365.59 363.39 28 1997 7 1997.542 364.34 364.34 363.63 26 1997 8 1997.625 362.20 362.20 363.78 27 1997 9 1997.708 360.31 360.31 363.69 29 1997 10 1997.792 360.71 360.71 364.01 31 1997 11 1997.875 362.44 362.44 364.51 29 1997 12 1997.958 364.33 364.33 365.12 31 1998 1 1998.042 365.18 365.18 365.01 30 1998 2 1998.125 365.98 365.98 365.18 27 1998 3 1998.208 367.13 367.13 365.50 31 1998 4 1998.292 368.61 368.61 366.00 30 1998 5 1998.375 369.49 369.49 366.60 30 1998 6 1998.458 368.95 368.95 366.73 30 1998 7 1998.542 367.74 367.74 367.05 30 1998 8 1998.625 365.79 365.79 367.37 31 1998 9 1998.708 364.01 364.01 367.34 29 1998 10 1998.792 364.35 364.35 367.63 31 1998 11 1998.875 365.52 365.52 367.58 23 1998 12 1998.958 367.08 367.08 367.85 26 1999 1 1999.042 368.12 368.12 367.92 27 1999 2 1999.125 368.98 368.98 368.18 23 1999 3 1999.208 369.60 369.60 368.00 25 1999 4 1999.292 370.96 370.96 368.44 30 1999 5 1999.375 370.77 370.77 367.95 30 1999 6 1999.458 370.33 370.33 368.14 30 1999 7 1999.542 369.28 369.28 368.60 30 1999 8 1999.625 366.86 366.86 368.42 30 1999 9 1999.708 364.94 364.94 368.24 28 1999 10 1999.792 365.35 365.35 368.62 31 1999 11 1999.875 366.68 366.68 368.68 29 1999 12 1999.958 368.04 368.04 368.72 29 2000 1 2000.042 369.25 369.25 369.06 27 2000 2 2000.125 369.50 369.50 368.79 23 2000 3 2000.208 370.56 370.56 369.04 31 2000 4 2000.292 371.82 371.82 369.29 29 2000 5 2000.375 371.51 371.51 368.64 29 2000 6 2000.458 371.71 371.71 369.49 29 2000 7 2000.542 369.85 369.85 369.18 28 2000 8 2000.625 368.20 368.20 369.78 28 2000 9 2000.708 366.91 366.91 370.19 30 2000 10 2000.792 366.99 366.99 370.22 31 2000 11 2000.875 368.33 368.33 370.29 25 2000 12 2000.958 369.67 369.67 370.31 30 2001 1 2001.042 370.52 370.52 370.36 29 2001 2 2001.125 371.49 371.49 370.77 28 2001 3 2001.208 372.53 372.53 370.97 29 2001 4 2001.292 373.37 373.37 370.79 30 2001 5 2001.375 373.82 373.82 370.92 25 2001 6 2001.458 373.18 373.18 370.97 28 2001 7 2001.542 371.57 371.57 370.94 30 2001 8 2001.625 369.63 369.63 371.21 30 2001 9 2001.708 368.16 368.16 371.41 30 2001 10 2001.792 368.42 368.42 371.65 31 2001 11 2001.875 369.69 369.69 371.70 27 2001 12 2001.958 371.18 371.18 371.89 31 2002 1 2002.042 372.45 372.45 372.23 29 2002 2 2002.125 373.14 373.14 372.26 27 2002 3 2002.208 373.93 373.93 372.22 27 2002 4 2002.292 375.00 375.00 372.33 30 2002 5 2002.375 375.65 375.65 372.74 31 2002 6 2002.458 375.50 375.50 373.30 30 2002 7 2002.542 374.00 374.00 373.36 31 2002 8 2002.625 371.83 371.83 373.47 31 2002 9 2002.708 370.66 370.66 374.01 29 2002 10 2002.792 370.51 370.51 373.85 31 2002 11 2002.875 372.20 372.20 374.33 30 2002 12 2002.958 373.71 373.71 374.50 30 2003 1 2003.042 374.87 374.87 374.63 31 2003 2 2003.125 375.62 375.62 374.75 27 2003 3 2003.208 376.48 376.48 374.79 31 2003 4 2003.292 377.74 377.74 375.02 27 2003 5 2003.375 378.50 378.50 375.47 31 2003 6 2003.458 378.18 378.18 375.95 29 2003 7 2003.542 376.72 376.72 376.16 28 2003 8 2003.625 374.32 374.32 375.98 26 2003 9 2003.708 373.20 373.20 376.51 28 2003 10 2003.792 373.10 373.10 376.45 30 2003 11 2003.875 374.64 374.64 376.83 25 2003 12 2003.958 375.93 375.93 376.74 30 2004 1 2004.042 377.00 377.00 376.79 31 2004 2 2004.125 377.87 377.87 377.01 27 2004 3 2004.208 378.73 378.73 377.06 30 2004 4 2004.292 380.41 380.41 377.65 29 2004 5 2004.375 380.63 380.63 377.51 28 2004 6 2004.458 379.56 379.56 377.28 26 2004 7 2004.542 377.61 377.61 377.03 28 2004 8 2004.625 376.15 376.15 377.85 19 2004 9 2004.708 374.11 374.11 377.49 16 2004 10 2004.792 374.44 374.44 377.80 31 2004 11 2004.875 375.93 375.93 378.13 27 2004 12 2004.958 377.45 377.45 378.30 31 2005 1 2005.042 378.47 378.47 378.22 31 2005 2 2005.125 379.76 379.76 378.95 27 2005 3 2005.208 381.14 381.14 379.63 27 2005 4 2005.292 382.20 382.20 379.54 30 2005 5 2005.375 382.47 382.47 379.33 31 2005 6 2005.458 382.20 382.20 379.87 30 2005 7 2005.542 380.78 380.78 380.17 30 2005 8 2005.625 378.73 378.73 380.38 30 2005 9 2005.708 376.66 376.66 379.98 30 2005 10 2005.792 376.98 376.98 380.29 14 2005 11 2005.875 378.29 378.29 380.47 24 2005 12 2005.958 379.92 379.92 380.75 29 2006 1 2006.042 381.35 381.35 381.11 26 2006 2 2006.125 382.16 382.16 381.35 25 2006 3 2006.208 382.66 382.66 381.11 30 2006 4 2006.292 384.73 384.73 382.01 27 2006 5 2006.375 384.98 384.98 381.83 29 2006 6 2006.458 384.09 384.09 381.78 29 2006 7 2006.542 382.38 382.38 381.81 27 2006 8 2006.625 380.45 380.45 382.10 28 2006 9 2006.708 378.92 378.92 382.22 29 2006 10 2006.792 379.16 379.16 382.48 25 2006 11 2006.875 380.18 380.18 382.39 30 2006 12 2006.958 381.79 381.79 382.65 31 2007 1 2007.042 382.93 382.93 382.75 23 2007 2 2007.125 383.81 383.81 382.96 21 2007 3 2007.208 384.56 384.56 382.92 31 2007 4 2007.292 386.40 386.40 383.58 28 2007 5 2007.375 386.58 386.58 383.35 31 2007 6 2007.458 386.05 386.05 383.77 30 2007 7 2007.542 384.49 384.49 383.98 31 2007 8 2007.625 382.00 382.00 383.70 30 2007 9 2007.708 380.90 380.90 384.25 25 2007 10 2007.792 381.14 381.14 384.47 30 2007 11 2007.875 382.42 382.42 384.64 30 2007 12 2007.958 383.89 383.89 384.81 28 2008 1 2008.042 385.44 385.44 385.24 31 2008 2 2008.125 385.73 385.73 384.87 28 2008 3 2008.208 385.97 385.97 384.37 30 2008 4 2008.292 387.16 387.16 384.43 28 2008 5 2008.375 388.50 388.50 385.33 26 2008 6 2008.458 387.88 387.88 385.61 24 2008 7 2008.542 386.42 386.42 385.91 10 2008 8 2008.625 384.15 384.15 385.84 28 2008 9 2008.708 383.09 383.09 386.38 30 2008 10 2008.792 382.99 382.99 386.29 24 2008 11 2008.875 384.13 384.13 386.33 29 2008 12 2008.958 385.56 385.56 386.44 30 2009 1 2009.042 386.93 386.93 386.73 31 2009 2 2009.125 387.42 387.42 386.56 28 2009 3 2009.208 388.77 388.77 387.16 30 2009 4 2009.292 389.46 389.46 386.73 28 2009 5 2009.375 390.19 390.19 387.02 31 2009 6 2009.458 389.44 389.44 387.16 29 2009 7 2009.542 387.91 387.91 387.40 29 2009 8 2009.625 385.92 385.92 387.60 30 2009 9 2009.708 384.79 384.79 388.08 27 2009 10 2009.792 384.39 384.39 387.69 31 2009 11 2009.875 386.00 386.00 388.20 30 2009 12 2009.958 387.27 387.27 388.16 21 2010 1 2010.042 388.45 388.45 388.25 28 2010 2 2010.125 389.82 389.82 388.96 24 2010 3 2010.208 391.08 391.08 389.47 28 2010 4 2010.292 392.46 392.46 389.73 28 2010 5 2010.375 392.95 392.95 389.79 30 2010 6 2010.458 392.03 392.03 389.76 29 2010 7 2010.542 390.13 390.13 389.62 30 2010 8 2010.625 388.15 388.15 389.83 31 2010 9 2010.708 386.80 386.80 390.09 30 2010 10 2010.792 387.18 387.18 390.48 31 2010 11 2010.875 388.59 388.59 390.78 29 2010 12 2010.958 389.68 389.68 390.56 31 2011 1 2011.042 391.19 391.19 390.98 29 2011 2 2011.125 391.77 391.77 390.91 28 2011 3 2011.208 392.41 392.41 390.80 30 2011 4 2011.292 393.29 393.29 390.55 28 2011 5 2011.375 394.16 394.16 390.99 31 2011 6 2011.458 393.69 393.69 391.41 28 2011 7 2011.542 392.38 392.38 391.87 31 2011 8 2011.625 390.07 390.07 391.75 29 2011 9 2011.708 389.00 389.00 392.29 28