Year % (cumulative) 2000 55.7769508361816 2007 63.6851539611816 2010 71.1412811279297 2013 74.8918685913086 2014 78.3791198730469 2015 78.7252883911133 2016 80.2191925048828 2017 81.1805267333984 2018 46.3123893737793 2019 82.5340728759766 2020 50.4988708496094 2021 82.869758605957 2022 81.5567321777344