Year | Value | 2021 | 12.4593 | 2020 | 10.09844 | 2019 | 23.90576 | 2018 | 21.909 | 2017 | 23.525 | 2016 | 23.993 | 2015 | 26.10771098 | 2014 | 19.359432 | 2013 | 0.593232 | 2012 | 2.3140304679729 | 2011 | 4.1856852667026 | 2010 | 4.8516983233346 | 2009 | 31.396 | 2008 | 78.109 | 2007 | 72.242 | 2006 | 70.649 | 2005 | 64.075 | 2004 | 58.245 | 2003 | 62.748 | 2002 | 80.854 | 2001 | 96.944 | 2000 | 129.804 | 1999 | 103.4000015259 | 1998 | 112.5999984741 | 1997 | 129.1000061035 | 1996 | 118.6999969482 | 1995 | 117 | 1994 | 135 | 1993 | 127 | 1992 | 107 | 1991 | 114.1999969482 | 1990 | 112.6999969482 | 1989 | 103.0999984741 | 1988 | 101.9000015259 | 1987 | 104.3000030518 | 1986 | 91.6999969482 | 1985 | 103.0999984741 | 1984 | 68.5999984741 | 1983 | 65.5999984741 | 1982 | 58.2000007629 | 1981 | 67.5999984741 | 1980 | 61.4000015259 | 1979 | 62.0999984741 | 1978 | 54.9000015259 | 1977 | 52.9000015259 | 1976 | 52.7999992371 | 1975 | 32.5 | 1974 | 47.7999992371 | 1973 | 53.9000015259 | 1972 | 42.2000007629 | 1971 | 32.4000015259 | 1970 | 31.1000003815 |
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