Year	% of total population ages 15+ (national estimate)
1966	49.54
1976	50.79
1982	54.33
1986	54.63
1991	34.1
1992	35.22
1993	35.15
1996	59.45
2004	58.2
2005	56.727
2008	39.3
2009	39.3
2010	56.99
2011	63.056
2014	58.89
2016	57.584