Year | Value | 2021 | 2,921.0825998586 | 2020 | 2,385.7264153925 | 2019 | 2,688.3418439961 | 2018 | 3,024.2796584254 | 2017 | 2,780.5481784841 | 2016 | 2,405.8718958945 | 2015 | 2,601.5742540692 | 2014 | 2,820.6837161139 | 2013 | 2,926.239286004 | 2012 | 2,969.4954081992 | 2011 | 3,059.9567320559 | 2010 | 3,044.1582588574 | 2009 | 2,647.8004153802 | 2008 | 2,542.9169247143 | 2007 | 2,809.9414317709 | 2006 | 2,662.325745274 | 2005 | 2,750.5804405038 | 2004 | 2,213.1802727639 | 2003 | 1,702.4964389861 | 2002 | 1,124.5282816235 | 2001 | 1,339.6807299823 | 2000 | 1,447.7453530785 | 1999 | 1,333.6204045967 | 1998 | 1,342.1931423988 | 1997 | 1,570.9163973131 | 1996 | 1,517.2175587187 | 1995 | 1,595.1820086094 | 1994 | 1,251.8197620587 | 1993 | 1,292.877842788 | 1992 | 1,312.0347509888 | 1991 | 1,230.6317969764 | 1990 | 1,228.6518595194 |
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