Year	% of population
2008	69.2103144135878
2009	67.0552882527662
2010	65.9550535751935
2011	67.7314007068402
2012	65.2956809488281
2014	63.901296992738
2015	73.9483650811618
2016	74.254668239948
2017	74.9153917125447
2018	75.1257366006445
2019	77.1961296687752
2020	86.8111592447705