Year | Value | 2022 | 34.473 | 2021 | 35.215 | 2020 | 35.986 | 2019 | 36.785 | 2018 | 37.613 | 2017 | 38.47 | 2016 | 39.355 | 2015 | 40.27 | 2014 | 41.214 | 2013 | 42.186 | 2012 | 43.185 | 2011 | 44.193 | 2010 | 45.204 | 2009 | 46.218 | 2008 | 47.235 | 2007 | 48.257 | 2006 | 49.279 | 2005 | 50.301 | 2004 | 51.322 | 2003 | 52.344 | 2002 | 53.159 | 2001 | 53.571 | 2000 | 53.982 | 1999 | 54.393 | 1998 | 54.803 | 1997 | 55.213 | 1996 | 55.621 | 1995 | 56.03 | 1994 | 56.437 | 1993 | 56.844 | 1992 | 57.249 | 1991 | 58.009 | 1990 | 59.339 | 1989 | 60.654 | 1988 | 61.953 | 1987 | 63.238 | 1986 | 64.504 | 1985 | 65.749 | 1984 | 66.68 | 1983 | 67.575 | 1982 | 68.456 | 1981 | 69.325 | 1980 | 70.178 | 1979 | 71.02 | 1978 | 71.847 | 1977 | 72.659 | 1976 | 73.455 | 1975 | 74.239 | 1974 | 75.006 | 1973 | 75.758 | 1972 | 76.493 | 1971 | 77.214 | 1970 | 77.919 | 1969 | 78.608 | 1968 | 79.281 | 1967 | 79.939 | 1966 | 80.581 | 1965 | 81.207 | 1964 | 81.817 | 1963 | 82.413 | 1962 | 82.992 | 1961 | 83.556 | 1960 | 84.105 |
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