Year	% (national estimate)
2002	36.796
2005	28.216
2007	22.138
2008	24.119
2009	25.287
2010	23.376
2011	34.107
2012	25.62
2013	18.958
2014	17.412
2015	18.786
2016	20.061
2017	21.621
2018	25.648
2019	26.72