Year	% of population
2006	33.3246906533391
2009	32.6183020979633
2011	33.2394747142566
2012	33.9595908283381
2015	35.8897515252683
2016	33.6976498427325
2017	33.6063077791732
2018	34.2220509278043
2019	34.2327849377981
2020	28.9695734821935