Year	% of total population ages 15+ (national estimate)
1965	68.08
1975	65.42
1992	57.17
1997	51.8
2000	50.179
2001	51.373
2002	50.821
2003	49.922
2004	50.551
2005	49.689
2006	51.293
2007	52.596
2008	53.808
2009	53.021
2010	53.394
2011	52.512
2012	53.079
2013	53.9
2014	54.143
2015	54.068
2016	53.331
2017	55.355
2018	55.323
2019	56.582
2020	55.547
2021	55.258
2022	56.57
2023	55.655