Year | Value | 2021 | 3,028.3818076028 | 2020 | 2,919.9613355301 | 2019 | 3,082.0154260565 | 2018 | 2,907.2235548363 | 2017 | 2,775.5682803151 | 2016 | 2,589.4376429319 | 2015 | 2,472.0899614364 | 2014 | 2,671.8736927472 | 2013 | 2,646.9401930418 | 2012 | 2,506.7033139774 | 2011 | 2,717.1521906952 | 2010 | 2,397.5501794434 | 2009 | 2,169.07610195 | 2008 | 2,313.759714509 | 2007 | 1,972.0470133812 | 2006 | 1,727.5953754808 | 2005 | 1,549.9453855643 | 2004 | 1,490.8270836791 | 2003 | 1,323.6819200045 | 2002 | 1,140.933164232 | 2001 | 1,185.9877635267 | 2000 | 1,232.0890367322 | 1999 | 1,287.1443035915 | 1998 | 1,272.8276780603 | 1997 | 1,233.0965923704 | 1996 | 1,190.2501239305 | 1995 | 1,124.3660278418 | 1994 | 1,070.8670732474 | 1993 | 962.47993515613 | 1992 | 1,026.9758185595 | 1991 | 1,043.1656919023 | 1990 | 1,021.0659190779 | 1989 | 923.76555902156 | 1988 | 897.55364534642 | 1987 | 771.18408603978 | 1986 | 804.40208816808 | 1985 | 825.31279603676 | 1984 | 902.75117750077 | 1983 | 735.69579682398 | 1982 | 694.10411724052 | 1981 | 742.66981704966 | 1980 | 809.48241795978 |
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