Year	% of total population ages 15+ (national estimate)
1961	57.17
1974	48.97
1981	45.67
1984	49.06
1985	49.26
1986	50.28
1989	78.62
1991	75.9
1996	72.56
2000	72.06
2003	57.3
2006	58.071
2010	58.576
2013	57.18
2016	56.09
2017	58.328
2022	51.7