| Year | Value | | 2022 | 83.53825397 | | 2021 | 81.16588116 | | 2020 | 78.36804864 | | 2019 | 77.41677362 | | 2018 | 73.36070915 | | 2017 | 70.33083553 | | 2016 | 67.05684137 | | 2015 | 65.3170254 | | 2014 | 62.07508046 | | 2013 | 53.45036418 | | 2012 | 48.1 | | 2011 | 42.2 | | 2010 | 40.9 | | 2009 | 38.1 | | 2008 | 35.6 | | 2007 | 33.15 | | 2006 | 27.2 | | 2005 | 26.3 | | 2004 | 23.5 |
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