Year % (cumulative) 1991 96.4673690795898 2003 99.4651336669922 2006 95.6686782836914 2007 99.3000030517578 2008 97.8478622436523 2009 99.4655609130859 2010 96.064811706543 2011 96.4780578613281 2012 99.523811340332 2013 99.7025604248047 2014 91.5116271972656 2015 91.6284408569336 2016 92.3210220336914 2017 86.5357666015625 2018 93.7607269287109 2019 88.1112060546875 2020 95.0672607421875 2021 90.3643493652344 2022 90.9987258911133