Year % (cumulative) 2001 41.5085182189941 2011 42.9780616760254 2012 44.3074798583984 2013 42.379638671875 2014 44.2824783325195 2015 50.285831451416 2016 51.6476783752441 2017 53.1116218566895 2018 54.4736213684082 2019 57.3168601989746 2020 58.943359375 2021 57.0724296569824