Year | Value | 2021 | 1,123.1690164429 | 2020 | 1,100.2452175016 | 2019 | 1,185.8569671993 | 2018 | 1,160.1201634228 | 2017 | 1,173.1242868423 | 2016 | 1,156.6431376846 | 2015 | 1,281.917119865 | 2014 | 1,491.8917658071 | 2013 | 1,394.5698129023 | 2012 | 1,285.4410380516 | 2011 | 1,177.4100285079 | 2010 | 1,059.1953645047 | 2009 | 969.34426119971 | 2008 | 1,029.9331890372 | 2007 | 851.17314301038 | 2006 | 739.2054713507 | 2005 | 573.58905139545 | 2004 | 492.28162604103 | 2003 | 411.67238635619 | 2002 | 395.7642538471 | 2001 | 347.86083100044 | 2000 | 374.79692759463 | 1999 | 353.59185651407 | 1998 | 323.17475926148 | 1997 | 311.00335977237 | 1996 | 287.04043104735 | 1995 | 263.50725504805 | 1994 | 205.68234184151 | 1993 | 235.0802524685 | 1992 | 288.28582305099 | 1991 | 322.63047567102 | 1990 | 327.37231684862 | 1989 | 199.93930316496 | 1988 | 221.1589953056 | 1987 | 215.71180853187 | 1986 | 210.41159506324 | 1985 | 223.45837969421 | 1984 | 230.50569583882 | 1983 | 266.39840062514 | 1982 | 352.43428837501 | 1981 | 386.77041976347 | 1980 | 221.87899024627 |
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