Year | Value | 2022 | 76.392572816977 | 2021 | 74.328990610003 | 2020 | 70.816321640276 | 2019 | 65.37980117558 | 2018 | 60.1450292315 | 2017 | 55.23262252861 | 2016 | 52.712716712166 | 2015 | 49.466657915159 | 2014 | 46.106643102015 | 2013 | 43.563412258029 | 2012 | 40.705923058566 | 2011 | 36.751990355691 | 2010 | 32.511499901418 | 2009 | 27.55341893026 | 2008 | 22.543709398274 | 2007 | 17.681889035765 | 2006 | 13.251430133901 | 2005 | 10.814370658034 | 2004 | 9.278274300181 | 2003 | 7.4156821114319 | 2002 | 5.6805505851159 | 2001 | 3.5152073882409 | 2000 | 2.3933153844082 | 1999 | 1.199543030514 | 1998 | 0.57219221592889 | 1997 | 0.25836710620161 | 1996 | 0.12183308676428 | 1995 | 0.05157489838237 | 1994 | 0.019907410282301 | 1993 | 0.0075912800826554 | 1992 | 0.0024783099897336 | 1991 | 0.00071460503036515 |
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