Year	% of total population ages 15+ (national estimate)
1978	92.72
1989	46.34
1996	85.98
2000	85.8
2002	77.47
2005	83.1
2012	73.56
2014	83.589
2017	60.461
2018	60.378
2019	58.451
2020	62.66
2021	58.197
2022	60.164
2023	63.664