Year	% of population
2008	27.9208459555323
2009	36.1728871492365
2010	28.8214865471959
2011	29.0107709924885
2013	27.878954821713
2015	19.9306467874492
2016	13.4971734812318
2017	17.0008895306723
2018	8.29689343569861
2019	3.27601474733327