Year	% (national estimate)
1983	44.79943793399384
1984	45.942666277720996
1985	46.36636661972923
1986	45.74091291011591
1987	46.36319463891959
1988	46.731044995013846
1989	47.384499082258856
1990	47.325895848435046
1991	46.264041909840586
1992	45.134586498649746
1993	43.95479213401406
1994	43.999746672192096
1995	43.55371486052843
1996	43.21095104827989
1997	43.28975018815577
1998	43.76497464195454
1999	44.27740002985146
2000	44.86058931407214
2001	44.61738586503594
2002	44.233632623752044
2003	43.4917819618638
2004	43.31922089563352
2005	43.27775434862648
2006	43.22091253158273
2007	43.20378625309411
2008	42.67018239497173
2009	40.53693611040042
2010	39.35115050542283
2011	39.230423164288645
2012	38.99452323549013
2013	39.414167924738436
2014	39.36129231725005
2015	40.75255622071621
2016	41.421936614153275
2017	41.56822762652743
2018	42.197495993981654
2019	42.955708008815996
2020	39.340142817831456
2021	42.06240701941502
2022	44.38592805493681
2023	45.18052147281095