Year | Value | 2022 | 75.483518344598 | 2021 | 75.414795941538 | 2020 | 74.38109096776 | 2019 | 75.682635587711 | 2018 | 76.029173250804 | 2017 | 76.223839131367 | 2016 | 76.449649702105 | 2015 | 77.769378627955 | 2014 | 78.470794932294 | 2013 | 78.46436214503 | 2012 | 79.75757339631 | 2011 | 78.162876229538 | 2010 | 78.487584096359 | 2009 | 79.016239859593 | 2008 | 79.424624691473 | 2007 | 79.507963071943 | 2006 | 79.81129036255 | 2005 | 79.764435295679 | 2004 | 79.442877697842 | 2003 | 78.675209944655 | 2002 | 78.01928908205 | 2001 | 77.025651016777 | 2000 | 77.401253187504 | 1999 | 77.188222034924 | 1998 | 77.765982919626 | 1997 | 76.666556744546 | 1996 | 76.197093232387 | 1995 | 74.988199785934 | 1994 | 74.805281033734 | 1993 | 74.418013969618 | 1992 | 75.522512912782 | 1991 | 76.578414452879 |
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