Year	% of population
2007	19.1185308955678
2008	33.4081178112983
2009	37.8934437224314
2010	40.5373411353567
2011	38.0494980874959
2012	40.9091859055634
2013	35.4385877020689
2014	40.6386013518074
2015	40.0735378651026
2016	77.2034337451463
2017	65.7934919875498
2018	66.1193488469469
2019	59.0617959197858