Year	% of population
2007	8.33092355688369
2008	14.2824818181198
2009	17.7741032184519
2010	22.3282107887644
2011	22.1383173722393
2012	31.0586690313486
2013	25.797842662738
2014	26.5224591010109
2015	21.7710738791989
2016	45.1497591924188
2017	42.7659379652019
2018	41.3990060301229
2019	40.6233170093292