Year	% of population
2008	51.4820842560231
2009	50.4813151765424
2010	53.2419670487817
2011	50.9028544694577
2013	55.7937548640583
2015	45.8931175503408
2016	35.9202399284335
2017	43.5363244838092
2018	20.6107234823796
2019	14.2437710472221