Year	% of total population ages 15+ (national estimate)
1961	54.22
1972	49.91
1979	55.22
1980	55.19
1981	51.94
1982	55.2
1984	55.24
1985	33.28
1986	61.87
1987	61.22
1988	33.9
1989	61.29
1990	61.5
1991	57.26
1992	58.9
1993	51.17
1994	60.78
1995	62.92
1997	74.956
1998	73.239
1999	71.945
2000	72.042
2001	71.333
2002	77.949
2003	70.36
2004	75.75
2005	73.109
2006	76.14
2007	78.228
2008	78.223
2009	78.577
2010	79.241
2011	78.652
2012	78.459
2013	77.863
2014	77.065
2015	75.903
2016	75.377
2017	76.996
2018	77.179
2019	77.362
2020	68.924
2021	71.93
2022	74.473
2023	72.686