Year | Value | 2022 | 65.527 | 2021 | 64.785 | 2020 | 64.014 | 2019 | 63.215 | 2018 | 62.387 | 2017 | 61.53 | 2016 | 60.645 | 2015 | 59.73 | 2014 | 58.786 | 2013 | 57.814 | 2012 | 56.815 | 2011 | 55.807 | 2010 | 54.796 | 2009 | 53.782 | 2008 | 52.765 | 2007 | 51.743 | 2006 | 50.721 | 2005 | 49.699 | 2004 | 48.678 | 2003 | 47.656 | 2002 | 46.841 | 2001 | 46.429 | 2000 | 46.018 | 1999 | 45.607 | 1998 | 45.197 | 1997 | 44.787 | 1996 | 44.379 | 1995 | 43.97 | 1994 | 43.563 | 1993 | 43.156 | 1992 | 42.751 | 1991 | 41.991 | 1990 | 40.661 | 1989 | 39.346 | 1988 | 38.047 | 1987 | 36.762 | 1986 | 35.496 | 1985 | 34.251 | 1984 | 33.32 | 1983 | 32.425 | 1982 | 31.544 | 1981 | 30.675 | 1980 | 29.822 | 1979 | 28.98 | 1978 | 28.153 | 1977 | 27.341 | 1976 | 26.545 | 1975 | 25.761 | 1974 | 24.994 | 1973 | 24.242 | 1972 | 23.507 | 1971 | 22.786 | 1970 | 22.081 | 1969 | 21.392 | 1968 | 20.719 | 1967 | 20.061 | 1966 | 19.419 | 1965 | 18.793 | 1964 | 18.183 | 1963 | 17.587 | 1962 | 17.008 | 1961 | 16.444 | 1960 | 15.895 |
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