Year	% of population
2008	52.0301704295239
2009	54.7909382192419
2010	53.5892408620297
2011	55.2921162432095
2012	58.3003650029219
2013	52.7135805500815
2014	57.8523182363517
2015	54.9522584123536
2016	53.6799858608886
2017	60.5459939542214
2018	53.4879720864823
2019	50.7807275745975