Year	% (national estimate)
1983	57.03904894627569
1984	57.37986834500938
1985	58.10955961331901
1986	58.567000140904604
1987	58.48832942903107
1988	59.265931096599864
1989	59.77510717548669
1990	63.02106491774121
1991	66.98253670075837
1992	67.79502577757634
1993	68.06697456282083
1994	68.84870317002881
1995	69.52837893017558
1996	70.19294255740591
1997	71.01062653834249
1998	71.59358130592325
1999	72.67019902934237
2000	73.29872779644742
2001	74.46747439344955
2002	75.1385252389941
2003	76.08768816546323
2004	76.35936727632229
2005	77.15762117732383
2006	78.40298014239794
2007	79.7405114075061
2008	78.99822668389889
2009	80.49336149668075
2010	79.44402591532318
2011	81.92569351213551
2012	81.37955951646167
2013	82.18763640742358
2014	82.68711637937535
2015	82.94550140225877
2016	83.47241400012007
2017	83.85230049622956
2018	83.56098801633729
2019	84.03523340648911
2020	84.14915583626866
2021	83.95943241768238
2022	84.32612712768355
2023	84.55692787337371