Year	% (national estimate)
1990	41.859
1991	42.773
1992	43.243
1993	47.489
1994	51.37
1995	52.342
1996	52.013
1997	50.205
1998	47.438
1999	47.397
2000	48.083
2001	46.526
2002	42.162
2003	41.387
2004	43.005
2005	45.686
2006	45.713
2007	46.439
2008	47.265
2009	44.933
2010	45.077
2011	44.433
2012	46.127
2013	47.018
2014	47.018
2015	46.972
2016	46.894
2017	47.44
2018	46.358
2019	45.496
2020	41.472
2021	42.233
2022	44.166