Year % (cumulative) 1992 61.0046806335449 2000 58.9099998474121 2001 58.3899993896484 2002 56.9199981689453 2004 58.6300010681152 2005 60.810001373291 2006 60.5900001525879 2007 65.0299987792969 2008 63.75 2009 65.3000030517578 2011 68.120002746582 2012 69.620002746582 2013 70.4199981689453 2014 67.6699981689453 2015 69.4800033569336 2016 69.8300018310547 2017 69.1800003051758 2018 71.2900009155273 2019 74.0299987792969 2020 72.9499969482422 2021 75.1699981689453 2022 81.6292343139648