Year | Value | 2022 | 89.209256126754 | 2021 | 87.220631292238 | 2020 | 85.211661330546 | 2019 | 83.349147169123 | 2018 | 82.908990825707 | 2017 | 79.517815759204 | 2016 | 77.9286740614 | 2015 | 77.400368242624 | 2014 | 76.981193804864 | 2013 | 75.724473940199 | 2012 | 73.940016841251 | 2011 | 71.804523903275 | 2010 | 70.895934448342 | 2009 | 67.006666968288 | 2008 | 64.587716645492 | 2007 | 61.105200643657 | 2006 | 54.689181213276 | 2005 | 50.910110267974 | 2004 | 47.150820578411 | 2003 | 41.749556679803 | 2002 | 34.862210449109 | 2001 | 27.093005398417 | 2000 | 22.251331728282 | 1999 | 15.044492527936 | 1998 | 7.929505031735 | 1997 | 5.0450668976293 | 1996 | 2.8485648651992 | 1995 | 1.6499507727251 | 1994 | 0.82066240641628 | 1993 | 0.45386335871486 | 1992 | 0.30676774462864 | 1991 | 0.15795341931377 | 1990 | 0.071508751564581 |
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