| Year | Value | | 2022 | 85.50309124 | | 2021 | 83.5904265 | | 2020 | 78.45526895 | | 2019 | 73.65747575 | | 2018 | 70.68127793 | | 2017 | 63.74728218 | | 2016 | 59.50395129 | | 2015 | 55.76315563 | | 2014 | 54.08 | | 2013 | 49.7645 | | 2012 | 45.87999425 | | 2011 | 40.00999678 | | 2010 | 39.93 | | 2009 | 36.6 | | 2008 | 32.42 | | 2007 | 28.3 | | 2006 | 24.66 | | 2005 | 21.5 | | 2004 | 15 | | 2003 | 8.9 | | 2002 | 6.58 | | 2001 | 4.538669029 | | 2000 | 3.613717291 | | 1999 | 2.697580217 | | 1998 | 2.237649473 | | 1997 | 0.445444676 | | 1996 | 0.221622649 | | 1995 | 0.074952756 | | 1994 | 0.026300162 | | 1993 | 0.003703214 |
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