Year	% of total population ages 15+ (national estimate)
1960	55.48
1970	48.64
1975	27.6
1978	50.97
1979	51.3
1980	55.79
1988	38.4
1990	47.58
1991	59.863
1992	60.571
1993	61.349
1994	61.402
1995	61.507
1996	61.462
1997	62.89
1998	62.661
1999	61.994
2000	61.692
2001	60.99
2002	57.944
2003	58.278
2004	58.85
2005	59.329
2006	60.132
2007	60.103
2008	59.936
2009	59.891
2010	59.661
2011	59.782
2012	60.434
2013	60.314
2014	59.81
2015	59.849
2016	59.744
2017	59.419
2018	59.629
2019	60.172
2020	55.517
2021	58.855
2022	59.749
2023	60.384