Year	% (national estimate)
1983	55.39043292925396
1984	57.79808270313552
1985	56.85202697114491
1986	56.9200690582714
1987	57.11216333275991
1988	55.399820966263576
1989	55.059669511548655
1990	55.045945924629855
1991	53.67282212991
1992	51.814951123632916
1993	49.52772642013747
1994	48.35255841737712
1995	47.823333830726995
1996	46.90852698533511
1997	45.78092646329811
1998	46.47277757262516
1999	46.74911756361515
2000	46.46054859333143
2001	46.388165637294435
2002	46.124145029507666
2003	45.378174974222304
2004	44.983854712132974
2005	44.464274679572256
2006	44.30825947991847
2007	44.27820659395822
2008	44.59691667786393
2009	43.82979619449707
2010	43.2493970378677
2011	42.32379549611867
2012	42.090151490348575
2013	42.196877437906586
2014	41.69410886530225
2015	41.336715887795364
2016	41.192222097900796
2017	41.33532949538736
2018	41.61427964095855
2019	41.77968372552205
2020	40.14885062791176
2021	41.7286082313564
2022	42.76200150300054
2023	43.55195160919873