Year	% (national estimate)
1961	14.711465451784358
1974	18.354143019296256
1991	38.858346005380746
1992	39.959681935267106
1995	40.12731481481481
1998	48.325522916904795
1999	52.02180826896864
2000	50.821367030442275
2001	50.159141813037834
2002	44.35294117647059
2004	57.695756126718464
2005	50.49908550799134
2006	47.31809729470338
2007	47.21978557504874
2008	49.46811124213836
2009	50.699398432278066
2010	52.54520773743152
2011	49.72772977026047
2012	48.77795956088972
2013	52.992721700823594
2014	55.900554590245875
2015	57.02851245619931
2016	56.87493938512268
2017	55.16265244981247
2018	60.60002135307306
2019	57.40827086546394
2020	65.1210979547901
2021	65.68655624640786
2022	61.210745738461156
2023	52.853520577335665