Year | Value | 2021 | 90.169002543656 | 2020 | 89.444195836998 | 2019 | 88.249351551806 | 2018 | 86.923443830015 | 2017 | 85.316648137262 | 2016 | 83.729766353982 | 2015 | 79.369161773574 | 2014 | 77.895457831478 | 2013 | 76.201243594627 | 2012 | 74.797701914703 | 2011 | 72.038393136212 | 2010 | 71.501698451701 | 2009 | 69.39325557736 | 2008 | 68.078655495653 | 2007 | 65.920184536373 | 2006 | 60.555788526473 | 2005 | 57.813278803512 | 2004 | 54.043049652113 | 2003 | 48.832972465058 | 2002 | 44.154117280068 | 2001 | 35.860749401738 | 2000 | 29.897135252374 | 1999 | 22.288228943191 | 1998 | 15.434877179118 | 1997 | 10.251644985914 | 1996 | 6.4933476045355 | 1995 | 3.5311250227397 | 1994 | 1.8784254595028 | 1993 | 0.93091498753032 | 1992 | 0.65226205156732 | 1991 | 0.40939425336054 | 1990 | 0.25223110553477 |
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