Year	% of population
2006	26.6947429317992
2010	28.9022860531103
2011	36.1531646632791
2012	35.913069809808
2013	31.6675951988566
2014	37.4805727114612
2016	40.4188221575805
2017	41.9343118018823
2018	41.6077495757466
2019	42.8046307430678
2020	42.3060566328365
2021	38.8113509315776