Year % (cumulative) 1985 11.6999998092651 1990 13.3266801834106 2006 33.3038101196289 2007 34.6680564880371 2008 35.2572479248047 2009 36.263298034668 2010 37.0963020324707 2011 38.4343681335449 2012 38.6325798034668 2013 37.7074394226074 2014 38.3118209838867 2015 38.7291603088379 2016 41.9326095581055 2017 40.1168098449707 2018 44.8216705322266 2019 41.7366218566895 2020 47.5704498291016 2021 43.3006172180176 2022 43.7371673583984