Year % (cumulative) 1991 63.4939308166504 1994 62.7080688476562 1995 64.328239440918 2003 84.523323059082 2004 81.9512176513672 2006 78.7376480102539 2007 76.6233825683594 2008 79.4719467163086 2009 72.2384262084961 2010 73.9155578613281 2011 74.0762100219727 2012 76.4671020507812 2013 76.5957412719727 2014 77.3428192138672 2015 77.6887893676758 2016 77.5475006103516 2017 76.0984344482422 2018 78.1285934448242 2019 76.583869934082 2020 78.4313735961914 2021 77.6919479370117 2022 76.3356628417969