Year % (cumulative) 1989 84.9645080566406 2004 99.5500869750977 2006 99.0290145874023 2007 99.2165069580078 2008 99.4728088378906 2009 99.3549423217773 2010 99.5811462402344 2011 99.733642578125 2012 99.7341766357422 2013 99.6133804321289 2014 99.5782165527344 2015 99.5912780761719 2016 99.2812347412109 2017 99.1552734375 2018 100 2019 100 2020 99.3345642089844 2021 99.3867034912109 2022 99.3624267578125