Year	% of total population ages 15+ (national estimate)
1963	53.81
1975	53.1
1984	55.19
1985	50.82
1990	48.23
1991	57.52
1992	57.61
1993	56.59
1994	58.11
1995	59.19
1996	60.31
1998	61.008
1999	59.794
2000	60.164
2001	61.555
2002	59.971
2003	59.113
2004	59.485
2005	59.514
2006	61.981
2007	63.817
2008	64.006
2009	64.743
2010	64.285
2011	66.017
2012	65.223
2013	64.844
2014	65.874
2015	64.934
2016	64.613
2017	64.114
2018	63.679
2019	63.695
2020	61.255
2021	62.928
2022	63.181
2023	63.924