Year	% of population
2008	34.1023317984168
2009	28.1487689939958
2010	32.781672038722
2011	27.4509158846441
2012	36.9183125435806
2013	34.4106214925975
2014	40.1210537532033
2015	45.4846272631801
2016	47.2949324768109
2017	47.6955002710891
2018	42.491296537186
2019	50.1466206759162