Year | Value | 2021 | 3,361.2746582031 | 2020 | 2,900.3801269531 | 2019 | 3,116.8015136719 | 2018 | 3,110.4201660156 | 2017 | 2,926.2023925781 | 2016 | 2,788.9055175781 | 2015 | 2,790.2507324219 | 2014 | 3,038.5305175781 | 2013 | 2,788.3999023438 | 2012 | 2,577.1940917969 | 2011 | 2,673.9436035156 | 2010 | 2,500.8649902344 | 2009 | 2,562.4313964844 | 2008 | 2,608.2036132812 | 2007 | 2,256.1293945312 | 2006 | 1,986.3331298828 | 2005 | 1,830.3330078125 | 2004 | 1,755.7690429688 | 2003 | 1,551.28125 | 2002 | 1,272.3851318359 | 2001 | 1,201.3686523438 | 2000 | 1,196.8757324219 | 1999 | 1,299.9266357422 | 1998 | 1,324.3979492188 | 1997 | 1,247.4807128906 | 1996 | 1,400.8205566406 | 1995 | 1,270.5272216797 | 1994 | 1,193.56640625 | 1993 | 1,068.2434082031 | 1992 | 1,163.4488525391 | 1991 | 1,132.4832763672 | 1990 | 1,074.8668212891 | 1989 | 945.50134277344 | 1988 | 930.58117675781 | 1987 | 819.93524169922 | 1986 | 753.13616943359 | 1985 | 576.23858642578 | 1984 | 596.28820800781 | 1983 | 667.39312744141 | 1982 | 746.93707275391 | 1981 | 773.19445800781 | 1980 | 987.92205810547 | 1979 | 749.91967773438 | 1978 | 644.36151123047 | 1977 | 553.79235839844 | 1976 | 496.39807128906 | 1975 | 478.11801147461 | 1974 | 422.41116333008 | 1973 | 350.38806152344 | 1972 | 293.73806762695 | 1971 | 258.96279907227 |
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