Year	% of total population ages 15+ (national estimate)
1976	59.49
1985	61.28
1986	61.72
1987	61.8
1988	61.94
1989	61.68
1990	62.14
1991	62.58
1992	63.55
1993	64.24
1995	65.74
1996	66.22
1997	66.45
1998	66.84
1999	67.2
2001	67.62
2002	67.23
2003	66.21
2015	71.038
2016	96.69
2017	72.05
2018	71.89
2019	72.05
2020	71.09
2021	71.02
2022	70.47