Year	% of population
2008	6.10517374671104
2009	6.885196991857
2010	7.07237527244949
2011	6.74352442814849
2013	8.44948975928221
2015	8.64238795026122
2016	11.4466118198993
2017	11.4282276160342
2018	9.04502644850048
2019	9.77167099787587