Year % (cumulative) 2000 23.8257102966309 2005 29.0837802886963 2006 28.2527961730957 2007 27.6441402435303 2008 28.3812770843506 2010 29.8297805786133 2011 31.4808197021484 2012 36.7495307922363 2013 36.9650001525879 2014 37.4832916259766 2015 38.3780899047852 2016 39.1206092834473 2017 45.562801361084 2018 47.0673599243164 2019 50.4408569335938 2020 49.3698616027832 2021 54.0580940246582 2022 55.3932952880859