Year | Value | 2022 | 36.201 | 2021 | 37.031 | 2020 | 37.888 | 2019 | 38.771 | 2018 | 39.681 | 2017 | 40.617 | 2016 | 41.579 | 2015 | 42.566 | 2014 | 43.577 | 2013 | 44.613 | 2012 | 45.67 | 2011 | 46.753 | 2010 | 47.837 | 2009 | 48.924 | 2008 | 50.009 | 2007 | 51.098 | 2006 | 52.185 | 2005 | 53.269 | 2004 | 54.349 | 2003 | 55.427 | 2002 | 56.499 | 2001 | 57.565 | 2000 | 58.259 | 1999 | 58.831 | 1998 | 59.399 | 1997 | 59.965 | 1996 | 60.527 | 1995 | 61.089 | 1994 | 61.646 | 1993 | 62.201 | 1992 | 62.751 | 1991 | 63.3 | 1990 | 63.572 | 1989 | 63.842 | 1988 | 64.112 | 1987 | 64.381 | 1986 | 64.65 | 1985 | 64.917 | 1984 | 65.183 | 1983 | 65.448 | 1982 | 65.713 | 1981 | 65.976 | 1980 | 66.238 | 1979 | 66.5 | 1978 | 66.698 | 1977 | 66.895 | 1976 | 67.092 | 1975 | 67.288 | 1974 | 67.484 | 1973 | 67.679 | 1972 | 67.873 | 1971 | 68.067 | 1970 | 68.26 | 1969 | 68.452 | 1968 | 68.554 | 1967 | 68.626 | 1966 | 68.698 | 1965 | 68.77 | 1964 | 68.842 | 1963 | 68.914 | 1962 | 68.985 | 1961 | 69.057 | 1960 | 69.295 |
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