Year | Value | 2004 | 86.754811810459 | 2003 | 84.613136359165 | 2002 | 97.087489168204 | 2001 | 86.920432269173 | 2000 | 83.065119456028 | 1999 | 89.770074307333 | 1998 | 94.777928135732 | 1997 | 100.89292897904 | 1996 | 88.994335290741 | 1995 | 82.662007845416 | 1994 | 86.233450264904 | 1993 | 84.302767561793 | 1992 | 97.852237745678 | 1991 | 109.89017084535 | 1990 | 108.31870489565 | 1989 | 112.09574482057 | 1988 | 108.67165389104 | 1987 | 106.505977175 | 1986 | 107.77514675582 | 1985 | 110.32548532134 | 1984 | 113.70274605647 | 1983 | 117.25553792299 | 1982 | 122.83329522067 | 1981 | 119.95597787295 | 1980 | 110.83074761431 | 1979 | 100.77790023411 | 1978 | 104.09877616047 | 1977 | 100.98575279168 | 1976 | 101.05958627228 | 1975 | 107.26622599633 | 1974 | 93.97439107894 | 1973 | 90.488684814693 | 1972 | 116.42729734791 | 1971 | 136.23736939311 | 1970 | 135.32268644645 | 1969 | 127.00122998831 | 1968 | 121.46813908861 | 1967 | 122.38843245729 | 1966 | 123.31710111716 | 1965 | 119.88285063456 | 1964 | 116.21423330888 | 1963 | 113.67694805195 | 1962 | 111.53516295026 | 1961 | 111.80237877402 |
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