Year	% (national estimate)
1983	41.432065874176885
1984	42.50302907594143
1985	43.67977240460689
1986	43.32746711837142
1987	44.06701888910466
1988	44.67080589094872
1989	45.55392016624248
1990	46.22403256073288
1991	46.59405558889302
1992	48.23665165476395
1993	48.09629778407463
1994	47.73261288193895
1995	47.98906435236328
1996	47.774270657314524
1997	47.65859081008537
1998	47.53808590439993
1999	48.12315763792073
2000	48.4691724128314
2001	48.683444551198804
2002	48.67089729850905
2003	49.12352706028609
2004	49.361956678472765
2005	49.776611201415655
2006	50.00028065810899
2007	50.512532803442824
2008	50.54027415003382
2009	49.81289749918862
2010	50.07461697700856
2011	50.308211141551865
2012	49.89719861849173
2013	50.05021424559202
2014	50.46769746775183
2015	50.6868020087442
2016	51.77156939049168
2017	50.82973879989652
2018	51.34560359846999
2019	51.81939344622856
2020	50.19765939683741
2021	51.12191013506211
2022	52.32586350862108
2023	52.493012436674114