Year | Value | 2021 | 89.286847405195 | 2020 | 88.62266269492 | 2019 | 87.469922838983 | 2018 | 85.979935589748 | 2017 | 84.411549059995 | 2016 | 83.181257210983 | 2015 | 78.679970049826 | 2014 | 77.369628926878 | 2013 | 75.696981955425 | 2012 | 74.208124257747 | 2011 | 71.399068158528 | 2010 | 70.98173210295 | 2009 | 68.888255168676 | 2008 | 67.668886411614 | 2007 | 65.678878607445 | 2006 | 60.435655347948 | 2005 | 58.50166870479 | 2004 | 54.972951870984 | 2003 | 49.783419651463 | 2002 | 44.6878224739 | 2001 | 36.639735754219 | 2000 | 30.539167456641 | 1999 | 22.897091647708 | 1998 | 15.876499650236 | 1997 | 10.651134851854 | 1996 | 6.8018578042706 | 1995 | 3.7082840958428 | 1994 | 1.9652821304892 | 1993 | 0.97416532684873 | 1992 | 0.68617673211604 | 1991 | 0.43387105326937 | 1990 | 0.26818400827838 |
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