Year | Value | 2022 | 75.654 | 2021 | 75.62 | 2020 | 75.567 | 2019 | 75.494 | 2018 | 75.401 | 2017 | 75.287 | 2016 | 75.154 | 2015 | 75 | 2014 | 74.825 | 2013 | 74.65 | 2012 | 74.474 | 2011 | 74.297 | 2010 | 73.762 | 2009 | 73.182 | 2008 | 72.595 | 2007 | 71.998 | 2006 | 71.394 | 2005 | 70.782 | 2004 | 70.163 | 2003 | 69.536 | 2002 | 68.902 | 2001 | 68.26 | 2000 | 67.873 | 1999 | 67.51 | 1998 | 67.145 | 1997 | 66.779 | 1996 | 66.41 | 1995 | 66.039 | 1994 | 65.666 | 1993 | 65.291 | 1992 | 64.915 | 1991 | 64.535 | 1990 | 64.574 | 1989 | 64.655 | 1988 | 64.736 | 1987 | 64.817 | 1986 | 64.898 | 1985 | 64.979 | 1984 | 65.06 | 1983 | 65.14 | 1982 | 65.221 | 1981 | 65.302 | 1980 | 65.382 | 1979 | 65.462 | 1978 | 65.543 | 1977 | 65.623 | 1976 | 65.703 | 1975 | 65.783 | 1974 | 65.863 | 1973 | 65.943 | 1972 | 66.022 | 1971 | 66.102 | 1970 | 66.181 | 1969 | 65.755 | 1968 | 65.171 | 1967 | 64.582 | 1966 | 63.988 | 1965 | 63.39 | 1964 | 62.789 | 1963 | 62.183 | 1962 | 61.573 | 1961 | 60.96 | 1960 | 60.344 |
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