Year | Value | 2021 | 15.131581 | 2020 | 102.392463 | 2019 | 565.20947 | 2018 | 696.730006 | 2017 | 833.34794752702 | 2016 | 767.271186 | 2015 | 892.734324084 | 2014 | 1,042.7362639125 | 2013 | 1,122.986468 | 2012 | 1,174.6668057793 | 2011 | 1,072.9147798119 | 2010 | 1,025.562 | 2009 | 676.413 | 2008 | 760.889 | 2007 | 939.199 | 2006 | 1,232.995 | 2005 | 923.383 | 2004 | 928.987 | 2003 | 891.465 | 2002 | 783.844 | 2001 | 755.516 | 2000 | 687.569 | 1999 | 688.4000244141 | 1998 | 535.5999755859 | 1997 | 420.3999938965 | 1996 | 328.5 | 1995 | 263.1000061035 | 1994 | 276.5 | 1993 | 332.8999938965 | 1992 | 263.200012207 | 1991 | 191 | 1990 | 179.1999969482 | 1989 | 205.6000061035 | 1988 | 238.3000030518 | 1987 | 268.1000061035 | 1986 | 308.200012207 | 1985 | 391.799987793 | 1984 | 442.8999938965 | 1983 | 367.299987793 | 1982 | 318.200012207 | 1981 | 311.3999938965 | 1980 | 251.1999969482 | 1979 | 237 | 1978 | 222.1000061035 | 1977 | 173.8000030518 | 1976 | 146.3000030518 | 1975 | 142.3000030518 | 1974 | 143.6000061035 | 1973 | 112.6999969482 | 1972 | 75.8000030518 | 1971 | 63.9000015259 | 1970 | 56.7999992371 |
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