Year | Value | 2022 | 76.807 | 2021 | 76.345 | 2020 | 75.874 | 2019 | 75.391 | 2018 | 74.898 | 2017 | 74.394 | 2016 | 73.88 | 2015 | 73.358 | 2014 | 72.83 | 2013 | 72.295 | 2012 | 71.755 | 2011 | 71.2 | 2010 | 70.626 | 2009 | 70.045 | 2008 | 69.458 | 2007 | 68.864 | 2006 | 68.239 | 2005 | 67.558 | 2004 | 66.869 | 2003 | 66.172 | 2002 | 65.468 | 2001 | 64.758 | 2000 | 64.042 | 1999 | 63.318 | 1998 | 62.588 | 1997 | 61.853 | 1996 | 61.087 | 1995 | 60.236 | 1994 | 59.38 | 1993 | 58.519 | 1992 | 57.653 | 1991 | 56.865 | 1990 | 56.33 | 1989 | 55.794 | 1988 | 55.257 | 1987 | 54.717 | 1986 | 54.133 | 1985 | 53.395 | 1984 | 52.657 | 1983 | 51.916 | 1982 | 51.175 | 1981 | 50.434 | 1980 | 49.693 | 1979 | 48.951 | 1978 | 48.21 | 1977 | 47.47 | 1976 | 46.666 | 1975 | 45.747 | 1974 | 44.832 | 1973 | 43.92 | 1972 | 43.014 | 1971 | 42.11 | 1970 | 41.212 | 1969 | 40.321 | 1968 | 39.437 | 1967 | 38.557 | 1966 | 37.752 | 1965 | 37.068 | 1964 | 36.391 | 1963 | 35.718 | 1962 | 35.051 | 1961 | 34.389 | 1960 | 33.735 |
|