Year	% of total population ages 15+ (national estimate)
1960	59.4
1961	58.84285599297355
1962	58.8
1963	58.7
1964	58.7
1965	58.9
1966	59.2
1967	59.6
1968	59.6
1969	60.1
1970	60.403642470238935
1971	59.99555697346245
1972	60.39999999999999
1973	60.800000000000004
1974	61.300000000000004
1975	61.2
1976	61.594297281447176
1977	62.257467815675305
1978	63.155769936796595
1979	63.69720145336559
1980	63.848458877759555
1981	64.01065219135033
1982	64.03874920687987
1983	64.0711482973673
1984	64.46349265066024
1985	64.88311056269396
1986	65.37930029964821
1987	65.68631460986454
1988	65.99429909469832
1989	66.57653084416485
1990	66.56503161390603
1991	66.23989757121477
1992	66.32951054531327
1993	66.20306146804685
1994	66.50654025579917
1995	66.52720242555377
1996	66.64686040210191
1997	66.96912867573728
1998	66.88878350286429
1999	66.92674186109222
2000	66.94332689191718
2001	66.73150446563297
2002	66.61032545947151
2003	66.37746680012887
2004	66.14550726217803
2005	66.15828032001521
2006	66.28211762923395
2007	66.18472498966494
2008	66.15760683480131
2009	65.56852747459335
2010	64.95073580651464
2011	64.396975752123
2012	64.02557117599687
2013	63.61874367388308
2014	63.24024275370929
2015	63.01630640741856
2016	63.11169243956909
2017	63.184239635222426
2018	63.17816042542024
2019	63.41275066119843
2020	62.01844946008773
2021	62.054874276760536
2022	62.57955544335224
2023	62.93374128224485