Year	% (national estimate)
2005	30.314
2006	29.566
2007	29.457
2008	29.008
2009	27.266
2010	30.169
2011	25.308
2012	30.261
2013	29.656
2014	25.384
2015	26.029
2016	27.469
2017	27.35
2019	29.199
2022	20.027
2023	18.964