Year	% of total population ages 15+ (national estimate)
1989	70.15
1996	59.76
1997	59.68
1998	59.079
1999	57.74
2000	56.184
2001	56.588
2002	57.984
2003	57.098
2004	57.402
2005	57.36
2006	59.097
2007	60.255
2008	61.545
2009	60.13
2010	58.884
2011	58.524
2012	59.727
2013	59.435
2014	59.273
2015	60.066
2016	60.419
2017	60.831
2018	61.441
2019	61.228
2020	61.674
2021	60.186
2022	61.139
2023	61.175