Year | Value | 2022 | 36.44 | 2021 | 37.488 | 2020 | 38.572 | 2019 | 39.692 | 2018 | 40.848 | 2017 | 42.04 | 2016 | 43.264 | 2015 | 44.5 | 2014 | 45.741 | 2013 | 46.987 | 2012 | 48.235 | 2011 | 49.489 | 2010 | 50.774 | 2009 | 52.12 | 2008 | 53.461 | 2007 | 54.801 | 2006 | 56.132 | 2005 | 57.478 | 2004 | 58.856 | 2003 | 60.224 | 2002 | 61.575 | 2001 | 62.907 | 2000 | 64.123 | 1999 | 65.135 | 1998 | 66.133 | 1997 | 67.117 | 1996 | 68.084 | 1995 | 69.039 | 1994 | 69.976 | 1993 | 70.897 | 1992 | 71.8 | 1991 | 72.688 | 1990 | 73.558 | 1989 | 74.299 | 1988 | 75.026 | 1987 | 75.741 | 1986 | 76.441 | 1985 | 77.126 | 1984 | 77.797 | 1983 | 78.455 | 1982 | 79.098 | 1981 | 79.882 | 1980 | 80.642 | 1979 | 81.383 | 1978 | 82.1 | 1977 | 82.48 | 1976 | 82.54 | 1975 | 82.6 | 1974 | 82.708 | 1973 | 82.816 | 1972 | 82.816 | 1971 | 82.708 | 1970 | 82.6 | 1969 | 82.472 | 1968 | 82.344 | 1967 | 82.215 | 1966 | 82.085 | 1965 | 81.914 | 1964 | 81.701 | 1963 | 82.243 | 1962 | 82.774 | 1961 | 83.292 | 1960 | 83.797 |
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