Year	% of population
2007	10.1738282161277
2008	18.182810975757
2009	28.738960467393
2010	30.8420113243765
2011	29.2642072994203
2012	36.0163306256348
2013	33.7426630012134
2014	31.2932782006734
2015	26.3881646995657
2016	59.013851632482
2017	52.5826070612346
2018	55.6498602220872
2019	48.9667423280032