Year	% (national estimate)
1993	46.803
1994	47.57
1995	46.659
1996	45.908
1997	44.289
1998	42.955
1999	40.063
2000	38.27
2001	35.983
2002	33.656
2003	31.428
2004	28.535
2005	27.338
2006	27.673
2007	28.492
2008	28.068
2009	26.544
2010	25.217
2011	24.519
2012	25.168
2013	25.563
2014	27.093
2015	28.386
2016	28.62
2017	29.136
2018	28.361
2019	28.041
2020	25.133
2021	24.836
2022	25.808
2023	25.476