Year	% of population
2005	32.6054642151886
2006	27.5599266533813
2007	21.393929945839
2008	15.6615740252555
2009	17.8533601361804
2010	4.62852168507376
2011	3.28235839970373
2012	3.55141287271128
2015	2.21831542247593
2016	2.12656851267853
2017	2.67475640453966