Year | Value | 2021 | 22.23564 | 2020 | 19.11662 | 2019 | 51.70094 | 2018 | 56.569 | 2017 | 53.387 | 2016 | 45.558 | 2015 | 54.077 | 2014 | 59.58 | 2013 | 70.098 | 2012 | 50.619 | 2011 | 47.699 | 2010 | 48.272 | 2009 | 93.983 | 2008 | 66.621 | 2007 | 81.743 | 2006 | 73.556 | 2005 | 86.61 | 2004 | 84.899 | 2003 | 75.056 | 2002 | 80.767 | 2001 | 74.837 | 2000 | 85.204 | 1999 | 102.5999984741 | 1998 | 108.4000015259 | 1997 | 123.5 | 1996 | 80.0999984741 | 1995 | 128.6999969482 | 1994 | 138.3999938965 | 1993 | 125.1999969482 | 1992 | 152.6999969482 | 1991 | 169.6000061035 | 1990 | 167.1000061035 | 1989 | 283.5 | 1988 | 309.200012207 | 1987 | 194.8000030518 | 1986 | 33.0999984741 | 1985 | 199.8000030518 | 1984 | 487.700012207 | 1983 | 610.0999755859 | 1982 | 461.8999938965 | 1981 | 465.8999938965 | 1980 | 530.5999755859 | 1979 | 589.9000244141 | 1978 | 510.3999938965 | 1977 | 540.200012207 | 1976 | 573 | 1975 | 470.8999938965 | 1974 | 418.799987793 | 1973 | 391.700012207 | 1972 | 269.1000061035 | 1971 | 196.8000030518 | 1970 | 143.1000061035 |
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