Year	% (national estimate)
1999	34.766
2000	34.329
2001	37.718
2002	35.776
2003	36.516
2004	33.565
2005	33.247
2006	34.083
2007	35.987
2008	36.74
2009	33.346
2010	33.291
2011	28.714
2012	26.056
2013	22.965
2014	25.859
2015	26.79
2016	26.226
2017	30.708
2018	35.026
2019	34.14
2020	32.094
2021	33.149
2022	33.473
2023	36.42