Year	% of total population ages 15+ (national estimate)
1965	56
1975	63.53
1976	63.53
1982	71.68
1983	71.76
1984	71.89
1985	72.27
1986	83.24
1987	83.38
1989	84.52
1990	74.379
1991	73.823
1992	72.345
1993	70.738
1994	70.054
1995	69.09
1996	61.308
1997	60.79
1998	60.185
1999	60.879
2000	60.405
2001	62.738
2002	62.664
2003	62.754
2004	62.536
2005	63.249
2006	63.352
2007	63.687
2008	63.935
2009	63.311
2010	70.533
2011	70.936
2012	71.133
2013	71.502
2014	71.955
2015	72.001
2016	72.093
2017	72.724
2018	72.975
2019	73.356
2020	73.288
2021	66.685
2022	67.052
2023	67.529