Year | Value | 2023 | 67.22431110804 | 2022 | 55.00486293103 | 2021 | 66.230773192337 | 2020 | 77.104801586153 | 2019 | 68.630168432723 | 2018 | 64.607076861609 | 2017 | 68.927802689308 | 2016 | 71.540516208469 | 2015 | 69.098381757999 | 2014 | 56.323488793356 | 2013 | 52.18624316799 | 2012 | 49.996985954548 | 2011 | 47.386237087669 | 2010 | 50.243965618745 | 2009 | 53.880033144671 | 2008 | 41.930677775231 | 2007 | 43.061652650694 | 2006 | 45.642850284324 | 2005 | 52.543022559393 | 2004 | 68.712339687229 | 2003 | 72.351500734625 | 2002 | 75.305567010309 | 2001 | 75.142975393182 | 2000 | 79.561687967614 | 1999 | 91.388307594501 | 1998 | 95.160727780038 | 1997 | 87.078491593579 | 1996 | 99.699919490595 | 1995 | 97.141250351486 | 1994 | 101.08545503069 | 1993 | 95.831847133758 | 1992 | 81.558473890583 | 1991 | 70.190868263473 | 1990 | 70.190995907231 |
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