| Year | Value | | 2022 | 86.215720792988 | | 2021 | 84.71241115685 | | 2020 | 81.780240438849 | | 2019 | 78.729072126681 | | 2018 | 75.976850622915 | | 2017 | 73.410638225953 | | 2016 | 71.34285444642 | | 2015 | 67.342967134996 | | 2014 | 66.475222197422 | | 2013 | 63.454101214894 | | 2012 | 61.714026296691 | | 2011 | 59.11907929262 | | 2010 | 58.600266085354 | | 2009 | 55.113843703706 | | 2008 | 50.705490247169 | | 2007 | 45.313766989342 | | 2006 | 40.834401636585 | | 2005 | 34.775142819014 | | 2004 | 29.275207380314 | | 2003 | 22.613612225965 | | 2002 | 18.264561019956 | | 2001 | 10.240288707765 | | 2000 | 7.0554372911185 | | 1999 | 4.9657250904193 | | 1998 | 3.5145824919423 | | 1997 | 1.7944719088187 | | 1996 | 1.0700208583151 | | 1995 | 0.58782673786904 | | 1994 | 0.36772097038381 | | 1993 | 0.14044954149548 | | 1992 | 0.02349718432187 | | 1991 | 0.0021226879167881 |
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