Year	% of population
2011	37.0717309632291
2012	37.2669961408873
2013	37.4626849235547
2014	37.6583716106045
2015	37.8544846451056
2016	38.050171700179
2017	38.2458613652094
2018	38.4415500428421
2019	38.6363929677589