Year	% of total population ages 15+ (national estimate)
1970	50.5
1979	52.41
1989	59.5
1995	68.74
1998	67.68
1999	59.5
2000	63.2
2001	62.71
2002	62.57
2003	62.33
2004	61.974
2005	62.309
2006	62.16
2007	62.643
2008	63.326
2009	63.33
2010	63.7
2011	64.3
2012	64.6
2013	64.96
2014	62.36
2015	62.36
2016	62.15
2017	62
2018	62.585
2019	56.318
2020	55.087
2021	54.639