Year	% of total population ages 15+ (national estimate)
2002	37.3
2003	37.4
2004	38.69
2005	39.29
2006	39.88
2007	74.24
2008	73.97
2009	71.23
2010	70.7
2011	69.7
2012	70.02
2013	70.52
2014	71.35
2015	71.89
2016	72.47
2017	73.53
2018	74.32
2019	74.86
2020	56.216