Year	% of population
2007	10.4104816068884
2008	19.1376780679207
2009	25.4909171292847
2010	28.3734085500667
2011	26.5806441853899
2012	31.4978239280667
2013	28.7699588309207
2014	29.9558549000357
2015	26.2119350675705
2016	55.1851863227786
2017	49.6202887574402
2018	49.9193937263308
2019	45.5282474154365