Year % (cumulative) 2006 30.959659576416 2011 33.4295616149902 2012 36.0119018554688 2013 36.8828086853027 2014 29.3604698181152 2015 39.1054992675781 2016 39.3764381408691 2017 37.3812217712402 2018 41.9003982543945 2019 39.1163711547852 2020 42.4327392578125 2021 40.9418563842773 2022 42.1445960998535