Year	% of total population ages 15+ (national estimate)
1960	44.93
1989	48.32
1990	48.07
1991	47.36
1992	46.69
1993	42.51
1995	40.29
1996	38.81
1997	58.4
1998	58.4
1999	57.2
2000	55.6
2002	59.61
2003	35
2004	34.79
2005	34.5
2006	34.45
2007	48.728
2008	53.192
2009	54.993
2010	55.202
2011	59.938
2012	56.995
2013	52.418
2014	53.42
2015	55.497
2016	57.314
2017	58.057
2018	59.296
2019	60.306