Year	% of population
2008	45.1855543346193
2009	47.1764054042188
2010	46.7654032550362
2011	48.171749725059
2012	44.5489841783713
2013	52.2186914960167
2014	51.6297340911749
2015	52.1180546820679
2016	53.0115749426103
2017	45.6727902188318
2018	44.3533187196768
2019	46.1405283244646