Year	% of total population ages 15+ (national estimate)
1960	53.797546513279535
1970	51.33839182167947
1980	54.295069472025546
1985	56.449676370974196
1987	58.05369509527544
1988	53.74519569736324
1989	60.80666172617179
1990	58.25886510697923
1991	60.436086654193964
1992	62.64841008283055
1993	62.74884371393477
1995	63.276987576334584
1996	61.328733503042834
1997	64.43188181889347
1998	64.375164342515
1999	64.08349164572932
2001	64.44715111247002
2002	64.66453151235675
2003	64.12586565446024
2004	64.96950817734324
2005	64.993209825134
2006	65.35420957535841
2007	64.44636118992165
2008	65.01250868145495
2009	65.1540590820925
2011	64.279325802842
2012	63.840332756698594
2013	63.73603029175491
2014	63.41083193339093
2015	63.82490097804437
2016	63.66068917128045
2017	63.76227063211833
2018	63.791566630758766
2019	64.07686604424246
2020	59.83158032046745
2021	62.39110485952159
2022	63.1904759119173
2023	62.84129750686808