Year | Value | 2022 | 82.124063926054 | 2021 | 77.94511596999 | 2020 | 78.489348326512 | 2019 | 75.948537565509 | 2018 | 74.780225396709 | 2017 | 74.851468131931 | 2016 | 73.831710516865 | 2015 | 72.359998336621 | 2014 | 73.369864764005 | 2013 | 73.472343827946 | 2012 | 73.776824388059 | 2011 | 73.598925058291 | 2010 | 75.841841338146 | 2009 | 79.665531688729 | 2008 | 73.360803693408 | 2007 | 71.362284572864 | 2006 | 73.675104914399 | 2005 | 73.456094387508 | 2004 | 74.80852115329 | 2003 | 74.895337450805 | 2002 | 76.347722310773 | 2001 | 76.794167108388 | 2000 | 75.319476756737 | 1999 | 75.497046447631 | 1998 | 76.595156248179 | 1997 | 75.536163538021 | 1996 | 79.151248403861 | 1995 | 77.066056000816 | 1994 | 77.85625811877 | 1993 | 84.492179352606 | 1992 | 80.808372541421 | 1991 | 77.025884589959 | 1990 | 81.407018858971 |
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