Year % (cumulative) 2001 52.8626518249512 2011 54.8944396972656 2012 55.654411315918 2013 52.7490997314453 2014 53.3758010864258 2015 59.2368011474609 2016 60.9075813293457 2017 61.7963485717773 2018 62.4882888793945 2019 64.9122085571289 2020 66.9104690551758 2021 64.2450485229492