Year	% of total population ages 15+ (national estimate)
1960	73
1970	73.33
1984	45.38
1989	63.8
1991	77.539
1992	76.5
1998	79.94
1999	79.9
2000	74.615
2006	68.65
2010	70.89
2013	76.135
2015	69.253
2017	71.34
2022	63.435