Year	% of population
2006	25.3624993050143
2010	36.8174025253556
2011	27.2082937701086
2012	26.6823868974095
2013	35.5027382439362
2014	31.6468388716383
2016	36.8140283799734
2017	37.3023343818737
2018	36.755232009803
2019	34.7129193881293
2020	33.8040987210942
2021	33.8604324007734