Year	% (national estimate)
1983	47.195356064205555
1984	49.50413035674199
1985	49.212836323561014
1986	49.02941213227443
1987	49.881552239793464
1988	48.239377759449084
1989	49.18616182606529
1990	48.64244883011085
1991	47.53222141912087
1992	45.34602092429622
1993	42.669223321533806
1994	41.65510515824374
1995	40.831034254171364
1996	39.438370014880576
1997	38.41630885108485
1998	39.01046841345077
1999	39.45435494666909
2000	39.52709230340784
2001	39.37370811961084
2002	38.7017947830535
2003	37.99300733695909
2004	37.73091758423867
2005	37.30245663840815
2006	37.326166738972915
2007	37.52007009489481
2008	37.537783188827845
2009	37.27754742057803
2010	36.5797961741412
2011	36.28403954148098
2012	36.12063604068412
2013	36.18307290947169
2014	35.795434680595015
2015	35.51633315968927
2016	35.64217170149916
2017	36.055995460839824
2018	35.928129460558544
2019	36.03038111745925
2020	34.27119949633958
2021	36.25538642703128
2022	37.306587442240605
2023	38.05982821921952