Year	% (national estimate)
1986	62.689
1987	62.434
1988	58.215
1989	53.746
1990	55.782
1991	52.588
1992	51.088
1993	50.711
1994	52.878
1995	55.309
1996	56.046
1997	55.237
1998	53.399
1999	51.528
2000	52.146
2001	52.673
2002	53.436
2003	53.173
2004	52.513
2005	53.134
2006	55.075
2007	55.648
2008	53.562
2009	48.659
2010	47.689
2011	47.669
2012	46.888
2013	47.285
2014	49.162
2015	50.844
2016	51.687
2017	52.91
2018	55.927
2019	55.994
2020	53.999
2021	57.725
2022	61.141
2023	60.83