Year	% (national estimate)
2002	35.126
2005	29.723
2007	26.796
2008	27.52
2009	29.47
2010	28.095
2011	38.864
2012	29.724
2013	24.231
2014	21.074
2015	23.674
2016	22.886
2017	24.865
2018	30.552
2019	31.214