Year | Value | 2022 | 80.326 | 2021 | 79.91 | 2020 | 79.483 | 2019 | 79.044 | 2018 | 78.595 | 2017 | 78.134 | 2016 | 77.661 | 2015 | 77.181 | 2014 | 76.693 | 2013 | 76.199 | 2012 | 75.697 | 2011 | 75.188 | 2010 | 74.672 | 2009 | 74.172 | 2008 | 73.726 | 2007 | 73.273 | 2006 | 72.816 | 2005 | 72.354 | 2004 | 71.887 | 2003 | 71.415 | 2002 | 70.939 | 2001 | 70.458 | 2000 | 69.973 | 1999 | 69.482 | 1998 | 69.064 | 1997 | 68.687 | 1996 | 68.308 | 1995 | 67.926 | 1994 | 67.541 | 1993 | 67.155 | 1992 | 66.766 | 1991 | 66.374 | 1990 | 65.981 | 1989 | 65.585 | 1988 | 64.872 | 1987 | 63.87 | 1986 | 62.857 | 1985 | 61.833 | 1984 | 60.8 | 1983 | 59.736 | 1982 | 58.664 | 1981 | 57.584 | 1980 | 56.498 | 1979 | 55.402 | 1978 | 54.247 | 1977 | 53.039 | 1976 | 51.829 | 1975 | 50.614 | 1974 | 49.4 | 1973 | 48.046 | 1972 | 46.697 | 1971 | 45.349 | 1970 | 44.01 | 1969 | 42.76 | 1968 | 41.588 | 1967 | 40.422 | 1966 | 39.269 | 1965 | 38.127 | 1964 | 37 | 1963 | 35.822 | 1962 | 34.663 | 1961 | 33.522 | 1960 | 32.401 |
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