Year | Value | 2021 | 662.1401852393 | 2020 | 687.22755090938 | 2019 | 711.91086105745 | 2018 | 735.80858846947 | 2017 | 684.82579774229 | 2016 | 641.24928014102 | 2015 | 620.00021045607 | 2014 | 699.66404664267 | 2013 | 641.72984510626 | 2012 | 600.68347861046 | 2011 | 672.98748159198 | 2010 | 578.4053441735 | 2009 | 564.87187125473 | 2008 | 573.01742684867 | 2007 | 482.08098125561 | 2006 | 426.80022070152 | 2005 | 415.20157788729 | 2004 | 372.2071119451 | 2003 | 332.58483845864 | 2002 | 269.28548473232 | 2001 | 258.39167267684 | 2000 | 235.87614047512 | 1999 | 285.85616855492 | 1998 | 241.8414878603 | 1997 | 230.12632365303 | 1996 | 246.83753337396 | 1995 | 245.25699641177 | 1994 | 191.09819097259 | 1993 | 277.22679811962 | 1992 | 282.06394160241 | 1991 | 276.38382431039 | 1990 | 275.93486424808 | 1989 | 230.46794746598 | 1988 | 230.42320928424 | 1987 | 228.84711595241 | 1986 | 205.33607615085 | 1985 | 157.04870014139 | 1984 | 138.26110740379 | 1983 | 147.9872879142 | 1982 | 152.94333960043 | 1981 | 183.97256862747 | 1980 | 216.77985599426 |
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