Year	% of population
2005	24.5272600951431
2006	21.0119067448125
2007	16.1129723997641
2008	12.4653360445151
2009	14.1551658825906
2010	3.47951533904672
2011	2.58855125536718
2012	2.76574546218341
2015	1.79157700121035
2016	1.68622686665615
2017	1.79277441505256