Year	% of population
2008	52.0211903827424
2009	51.7934452806113
2010	51.9394645677004
2011	48.3963955790775
2012	52.3662501274071
2013	53.9405436996159
2014	51.1166109929222
2015	63.818975618655
2016	64.3412494079432
2017	62.7475254783359
2018	65.9934557971633
2019	66.1447641344298