Year | Value | 2022 | 86.488 | 2021 | 86.362 | 2020 | 86.241 | 2019 | 86.124 | 2018 | 86.012 | 2017 | 85.904 | 2016 | 85.8 | 2015 | 85.701 | 2014 | 85.602 | 2013 | 85.502 | 2012 | 85.402 | 2011 | 85.3 | 2010 | 85.182 | 2009 | 85.063 | 2008 | 84.943 | 2007 | 84.822 | 2006 | 84.7 | 2005 | 84.582 | 2004 | 84.463 | 2003 | 84.343 | 2002 | 84.222 | 2001 | 84.1 | 2000 | 84.235 | 1999 | 84.37 | 1998 | 84.503 | 1997 | 84.636 | 1996 | 84.767 | 1995 | 84.898 | 1994 | 85.028 | 1993 | 85.157 | 1992 | 85.285 | 1991 | 85.403 | 1990 | 85.433 | 1989 | 85.463 | 1988 | 85.493 | 1987 | 85.522 | 1986 | 85.552 | 1985 | 85.582 | 1984 | 85.611 | 1983 | 85.641 | 1982 | 85.67 | 1981 | 85.7 | 1980 | 85.552 | 1979 | 85.403 | 1978 | 85.252 | 1977 | 85.1 | 1976 | 84.947 | 1975 | 84.792 | 1974 | 84.636 | 1973 | 84.478 | 1972 | 84.32 | 1971 | 84.16 | 1970 | 83.999 | 1969 | 83.836 | 1968 | 83.672 | 1967 | 83.507 | 1966 | 83.34 | 1965 | 83.068 | 1964 | 82.792 | 1963 | 82.511 | 1962 | 82.228 | 1961 | 81.941 | 1960 | 81.529 |
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