Year	% of population
2008	9.11946738101789
2009	11.8733101669483
2010	12.5485517636962
2011	11.0576870550991
2012	11.9553491932051
2013	12.8399241365271
2014	12.2759093754622
2015	12.3097893627935
2016	13.5981442545589
2017	14.5502186606728
2018	14.0045121736432
2019	15.6490925876378