Year	% of total population ages 15+ (national estimate)
1960	52.78
1970	49.4
1980	47.12
1981	47.78
1982	47.18
1983	47.54
1984	48.14
1985	51.32
1986	50.89
1988	52.52
1989	53.04
1990	52.75
1991	52.57
1992	53.81
1993	55.32
1994	55.17
1995	53.92
1996	56.63
1997	56.619
1998	56.752
1999	56.647
2000	55.909
2001	55.014
2002	54.512
2003	55.031
2004	55.397
2005	55.735
2006	56.875
2007	57.348
2008	58.546
2009	58.345
2010	60.192
2011	61.571
2012	61.537
2013	61.623
2014	61.933
2015	62.067
2016	62.155
2017	62.951
2018	63.207
2019	63.072
2020	56.358
2021	57.552
2022	60.138
2023	61.521