Year	% of population
2005	47.5649545955148
2006	42.2787543076911
2007	31.7821721717448
2008	24.7792396471387
2009	27.5068592513898
2010	5.86095413773973
2011	4.05342909625237
2012	4.33946360791286
2015	2.78051292118256
2016	2.56555026879592
2017	2.1202177087757