| Year | Value | | 2022 | 145.21717502579 | | 2021 | 137.85083623813 | | 2020 | 133.93883801767 | | 2019 | 130.11312803414 | | 2018 | 127.63374676725 | | 2017 | 124.57045324546 | | 2016 | 121.04485766107 | | 2015 | 117.49744557486 | | 2014 | 116.07674519793 | | 2013 | 111.76734442451 | | 2012 | 108.57351855564 | | 2011 | 105.47844749617 | | 2010 | 100 | | 2009 | 96.157179034647 | | 2008 | 97.366192122104 | | 2007 | 78.459840525649 | | 2006 | 72.174304683031 | | 2005 | 68.210790185141 | | 2004 | 63.9784499406 | | 2003 | 61.329425511007 | | 2002 | 60.757246500804 | | 2001 | 60.629036358392 | | 2000 | 60.995404216975 | | 1999 | 61.482339754778 | | 1998 | 59.112969558672 | | 1997 | 51.48921684226 | | 1996 | 47.692770276336 | | 1995 | 44.509927077871 | | 1994 | 44.868400624124 |
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