Year	% (national estimate)
1983	48.294
1984	49.934
1985	53.146
1986	53.214
1987	55.679
1988	57.624
1989	61.405
1990	60.52
1991	57.93
1992	55.608
1993	53.152
1994	52.346
1995	51.769
1996	53.371
1997	53.416
1998	53.383
1999	53.034
2000	53.57
2001	53.082
2002	54.004
2003	52.744
2004	53.361
2005	51.837
2006	51.735
2007	50.467
2008	49.96
2009	47.058
2010	45.241
2011	44.595
2012	45.148
2013	45.181
2014	47.025
2015	48.74
2016	50.091
2017	49.876
2018	48.995
2019	49.398
2020	48.026
2021	45.993
2022	49.9
2023	47.428