Year	% of population
2008	33.2481550721574
2009	37.9493774381534
2010	40.4556428980825
2011	39.4665767877903
2012	40.9351999242283
2015	38.4212568721446
2016	42.4325190723376
2017	42.9401505757561
2018	43.4939444553005
2019	45.3326622649128
2020	27.6211286122777