Year	% (national estimate)
1989	49.77669414730782
1992	47.25878488033517
1993	44.32405911045021
1994	43.640431896370416
1995	43.01995045555635
1996	41.498878495244305
1997	39.85665139230164
1998	40.43071668856793
1999	40.66667786503385
2000	39.76372450545347
2001	38.72943709225721
2002	38.92735434390747
2003	37.93079358924849
2004	37.87762509784361
2005	37.15906730802285
2006	37.162177006178744
2007	36.96335495446032
2008	37.66677541943072
2009	37.478207643593734
2010	37.10042991809926
2011	36.9339566422545
2012	36.2441990931863
2013	36.544034696142475
2014	35.987328581553804
2015	36.17417103696146
2016	36.003003447113905
2017	36.200417390169925
2018	35.92122995213189
2019	36.08660504869693
2020	33.64976577264528
2021	35.31109808850123
2022	36.25213216720277
2023	36.955326987067465