Year	% (national estimate)
2002	29.587
2003	28.488
2004	31.855
2005	30.032
2006	29.07
2007	32.404
2008	34.201
2009	32.309
2010	27.908
2011	23.786
2012	20.032
2013	17.375
2014	21.214
2015	22.376
2016	28.839
2017	29.839
2018	30.494
2019	33.181
2020	31.883
2021	31.114
2022	34.07
2023	30.68