Year	% of total population ages 15+ (national estimate)
1970	48.69
1989	68.17
1997	45.9
1999	58.67
2006	54.83
2007	55.24
2008	56.37
2009	61.4
2015	82.1
2016	70.826
2017	71.26
2018	70.921
2019	70.668
2020	70.303
2021	70.039
2022	70.211