| Year | Value | | 2022 | 170.48225659691 | | 2021 | 152.24143160449 | | 2020 | 146.26630269942 | | 2019 | 143.99757355171 | | 2018 | 141.3830755232 | | 2017 | 138.66545344252 | | 2016 | 134.45556566576 | | 2015 | 132.96329996967 | | 2014 | 131.13739763421 | | 2013 | 128.46223839854 | | 2012 | 119.28419775554 | | 2011 | 111.13739763421 | | 2010 | 100 | | 2009 | 94.212920837125 | | 2008 | 87.139824082499 | | 2007 | 77.518956627237 | | 2006 | 72.861841602383 | | 2005 | 65.215912967646 | | 2004 | 56.162524832982 | | 2003 | 50.584855216285 | | 2002 | 46.038054584668 | | 2001 | 38.528524534673 | | 2000 | 19.757688223295 | | 1999 | 11.546058685306 | | 1998 | 8.1051190893462 | | 1997 | 6.227057301027 | | 1996 | 5.0500081593895 | | 1995 | 2.5817915382825 | | 1994 | 1.4134371271465 |
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