Year	% of population
2008	56.803175088994
2009	53.292225062448
2010	57.644886089326
2012	53.4395758787817
2013	49.3182016927592
2014	50.1575033610039
2015	50.0252906385395
2016	50.4833996589336
2017	50.6467908555837
2018	42.4992552129576
2019	43.2412747567108