SeriesId,Year,Period,Value LFU21000000,1947,Annual,3.9 LFU21000000,1948,Annual,3.8 LFU21000000,1949,Annual,5.9 LFU21000000,1950,Annual,5.3 LFU21000000,1951,Annual,3.3 LFU21000000,1952,Annual,3.0 LFU21000000,1953,Annual,2.9 LFU21000000,1954,Annual,5.5 LFU21000000,1955,Annual,4.4 LFU21000000,1956,Annual,4.1 LFU21000000,1957,Annual,4.3 LFU21000000,1958,Annual,6.8 LFU21000000,1959,Annual,5.5 LFU21000000,1960,Annual,5.5 LFU21000000,1961,Annual,6.7 LFU21000000,1962,Annual,5.5 LFU21000000,1963,Annual,5.7 LFU21000000,1964,Annual,5.2 LFU21000000,1965,Annual,4.5 LFU21000000,1966,Annual,3.8 LFU21000000,1967,Annual,3.8 LFU21000000,1968,Annual,3.6 LFU21000000,1969,Annual,3.5 LFU21000000,1970,Annual,4.9 LFU21000000,1971,Annual,5.9 LFU21000000,1972,Annual,5.6 LFU21000000,1973,Annual,4.9 LFU21000000,1974,Annual,5.6 LFU21000000,1975,Annual,8.5 LFU21000000,1976,Annual,7.7 LFU21000000,1977,Annual,7.1 LFU21000000,1978,Annual,6.1 LFU21000000,1979,Annual,5.8 LFU21000000,1980,Annual,7.1 LFU21000000,1981,Annual,7.6 LFU21000000,1982,Annual,9.7 LFU21000000,1983,Annual,9.6 LFU21000000,1984,Annual,7.5 LFU21000000,1985,Annual,7.2 LFU21000000,1986,Annual,7.0 LFU21000000,1987,Annual,6.2 LFU21000000,1988,Annual,5.5 LFU21000000,1989,Annual,5.3 LFU21000000,1990,Annual,5.6 LFU21000000,1991,Annual,6.8 LFU21000000,1992,Annual,7.5 LFU21000000,1993,Annual,6.9 LFU21000000,1994,Annual,6.1 LFU21000000,1995,Annual,5.6 LFU21000000,1996,Annual,5.4 LFU21000000,1997,Annual,4.9 LFU21000000,1998,Annual,4.5 LFU21000000,1999,Annual,4.2 LFU21000000,2000,Annual,4.0 LFU21000000,2001,Annual,4.8