Year	% (national estimate)
2009	32.12817176640991
2010	29.505886343233342
2011	29.960181795346173
2012	28.904430906684205
2013	29.18332461816928
2014	29.53796333281555
2015	28.585162316594253
2016	30.79779544846225
2019	32.8561591389196