Year	% of total population ages 15+ (national estimate)
1966	44.94
1975	51.75
1980	49.02
1984	50.77
1989	48.09
1994	48.41
1997	48.63
2003	33.2
2005	45.499
2006	45.637
2007	45.859
2008	46.166
2009	46.511
2010	46.892
2011	47.193
2012	47.776
2013	47.424
2014	41.874
2015	47.065
2016	47.165
2017	46.976
2019	48.934
2022	45.815
2023	45.394