Year	% of population
2008	67.0525768125633
2009	64.0404594903814
2010	64.0155154789876
2011	60.503495717304
2012	63.4537232885563
2013	64.5207202928619
2014	63.386581090984
2015	73.6788148145736
2016	74.6704460051298
2017	72.8353922578703
2018	75.9110519310142
2019	76.6102648039169