Year	% of population
2007	6.28559264797475
2008	10.5288942903064
2009	7.16982887056531
2010	5.91722852315916
2011	6.45602675848945
2012	6.11905987744425
2014	7.49939825112568
2015	5.81742211059172
2016	6.9186099960163
2017	5.69333019018578
2018	7.3850253187081
2019	7.81846740715808