| Year | Value | | 2025 | 89.77024003 | | 2024 | 87.3078767 | | 2023 | 85.96074155 | | 2022 | 83.43716576 | | 2021 | 81.40843745 | | 2020 | 77.6695605 | | 2019 | 73.976702287151 | | 2018 | 71.042760843381 | | 2017 | 64.684617683537 | | 2016 | 58.347734014569 | | 2015 | 53.744979142358 | | 2014 | 51.037366552164 | | 2013 | 46.25 | | 2012 | 45.13 | | 2011 | 43.065710430925 | | 2010 | 39.82 | | 2009 | 36.4 | | 2008 | 34.37 | | 2007 | 28.63 | | 2006 | 18.24 | | 2005 | 15.46 | | 2004 | 14.58 | | 2003 | 12.33 | | 2002 | 11.38 | | 2001 | 5.1894814607851 | | 2000 | 3.761685035075 | | 1999 | 2.29 | | 1998 | 0.699 | | 1997 | 0.474 | | 1996 | 0.193 | | 1995 | 0.0817 | | 1994 | 0.0499 | | 1993 | 0.00846 |
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