Year	% (national estimate)
1983	47.4280254012196
1984	48.82031952920315
1985	48.94281771161071
1986	48.44002623066533
1987	48.791085559363545
1988	49.13797305969202
1989	49.73838545758532
1990	49.64790684032053
1991	48.27655575537798
1992	47.03464688886462
1993	45.838813244426824
1994	45.83539525252015
1995	45.62066926505296
1996	45.127374838612184
1997	45.23710610842836
1998	45.63326443022668
1999	46.148077840075516
2000	46.73335986112037
2001	46.226008728559066
2002	45.721290151020895
2003	44.836175813290296
2004	44.685617425388934
2005	44.49511541226927
2006	44.7289824108558
2007	44.57514291589911
2008	43.84599725811858
2009	40.76417481411378
2010	39.66061572742897
2011	39.674034775346904
2012	39.45050437321509
2013	39.780833364700406
2014	39.96446937253854
2015	41.145863818751565
2016	41.846609350912736
2017	42.05572171141679
2018	42.66776183578041
2019	43.37550068439539
2020	40.03002002370208
2021	42.50150105368868
2022	44.74550362933338
2023	45.38722441301852