Year | Value | 2022 | 69.355363083009 | 2021 | 67.950647533991 | 2020 | 70.465933675107 | 2019 | 69.698640991402 | 2018 | 69.243506599678 | 2017 | 69.480704856594 | 2016 | 71.190298286134 | 2015 | 70.971945526427 | 2014 | 69.359887503263 | 2013 | 70.088088362704 | 2012 | 68.988153051999 | 2011 | 68.617577136191 | 2010 | 71.990942604498 | 2009 | 73.876198568681 | 2008 | 71.74811097129 | 2007 | 68.305218343825 | 2006 | 69.972437030775 | 2005 | 71.216342377463 | 2004 | 72.797901786139 | 2003 | 73.117789549594 | 2002 | 73.606559472706 | 2001 | 73.412084523568 | 2000 | 73.961609911134 | 1999 | 78.106942028803 | 1998 | 78.079460343645 | 1997 | 78.38811354117 | 1996 | 80.557749112085 | 1995 | 80.482471926917 |
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