Year	% of population
2012	25.9416890630751
2013	26.0939171717973
2014	26.245110852663
2015	26.3933998784123
2016	26.539198112878
2017	26.6823041491641
2018	26.8222952752658
2019	26.9597996146697
2020	27.0941939160816