Year | Value | 2022 | 92.886 | 2021 | 92.572 | 2020 | 92.236 | 2019 | 91.876 | 2018 | 91.49 | 2017 | 91.077 | 2016 | 90.635 | 2015 | 90.173 | 2014 | 89.69 | 2013 | 89.187 | 2012 | 88.588 | 2011 | 87.879 | 2010 | 87.134 | 2009 | 86.288 | 2008 | 85.402 | 2007 | 84.539 | 2006 | 83.636 | 2005 | 82.63 | 2004 | 81.514 | 2003 | 80.341 | 2002 | 79.113 | 2001 | 77.83 | 2000 | 76.795 | 1999 | 76.03 | 1998 | 75.25 | 1997 | 74.453 | 1996 | 73.64 | 1995 | 72.809 | 1994 | 71.962 | 1993 | 71.1 | 1992 | 70.223 | 1991 | 69.329 | 1990 | 68.684 | 1989 | 68.296 | 1988 | 67.906 | 1987 | 67.513 | 1986 | 67.117 | 1985 | 66.719 | 1984 | 66.319 | 1983 | 65.916 | 1982 | 65.511 | 1981 | 65.104 | 1980 | 64.745 | 1979 | 64.435 | 1978 | 64.123 | 1977 | 63.811 | 1976 | 63.498 | 1975 | 63.183 | 1974 | 62.867 | 1973 | 62.55 | 1972 | 62.232 | 1971 | 61.913 | 1970 | 61.663 | 1969 | 61.481 | 1968 | 61.3 | 1967 | 61.118 | 1966 | 60.936 | 1965 | 60.753 | 1964 | 60.57 | 1963 | 60.387 | 1962 | 60.204 | 1961 | 60.02 | 1960 | 59.752 |
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