Year	% (national estimate)
1999	36.991
2000	36.684
2001	38.97
2002	36.66
2003	37.498
2004	37.28
2005	36.668
2006	37.367
2007	37.426
2008	37.955
2009	34.779
2010	33.819
2011	30.148
2012	28.131
2013	23.452
2014	25.822
2015	25.482
2016	26.379
2017	27.58
2018	31.295
2019	32.379
2020	31.309
2021	34.769
2022	34.449
2023	36.476