Year | Value | 2022 | 86.426376638791 | 2021 | 85.858392306214 | 2020 | 84.470167292411 | 2019 | 84.767142864821 | 2018 | 84.667870321279 | 2017 | 84.68576823912 | 2016 | 84.680519301459 | 2015 | 84.621997681148 | 2014 | 84.691301082935 | 2013 | 84.565593035342 | 2012 | 84.64301530451 | 2011 | 84.539763423042 | 2010 | 84.193006094941 | 2009 | 83.90066172548 | 2008 | 84.421573865587 | 2007 | 84.503666883902 | 2006 | 84.729447041135 | 2005 | 84.389722572939 | 2004 | 84.570018246151 | 2003 | 84.597588694167 | 2002 | 84.799102341755 | 2001 | 84.745266994387 | 2000 | 83.868562209197 | 1999 | 83.048709752075 | 1998 | 82.817420565797 | 1997 | 82.903270586948 | 1996 | 83.800156825102 | 1995 | 84.331990139515 | 1994 | 84.466705591356 | 1993 | 84.279336669327 | 1992 | 84.859420416819 | 1991 | 85.255192488451 |
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