| Year | Value | | 2022 | 74.67495125 | | 2021 | 71.10782643 | | 2020 | 65.25179796 | | 2019 | 59.9505036 | | 2018 | 55.05433424 | | 2017 | 50.45041218 | | 2016 | 45.46174069 | | 2015 | 40.85260091 | | 2014 | 40.2 | | 2013 | 39.2 | | 2012 | 38.2 | | 2011 | 36.01 | | 2010 | 34.77 | | 2009 | 31.4 | | 2008 | 30.57 | | 2007 | 25.2 | | 2006 | 20.7 | | 2005 | 17.1 | | 2004 | 14.1 | | 2003 | 11.6 | | 2002 | 8.96694917 | | 2001 | 7.578762957 | | 2000 | 3.076430611 | | 1999 | 1.952497608 | | 1998 | 1.19038044 | | 1997 | 0.403429701 | | 1996 | 0.24623258 | | 1995 | 0.033412305 | | 1994 | 0.008504578 |
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