Year	% (national estimate)
1992	53.51412191147886
1995	50.525742694204695
1996	48.69760376351826
1997	44.893646354007444
1998	45.345755000167564
1999	43.83347538442991
2000	42.94517781052863
2001	42.66659630091035
2002	41.05925412740421
2003	39.529006709299594
2004	38.76975893538722
2005	37.47129511553081
2006	36.362949382228464
2007	36.23788511088886
2008	36.31751291673691
2009	36.69772930112566
2010	36.96176403252215
2011	36.19588715953824
2012	36.25777598487288
2013	36.47363980591647
2014	37.0247166857454
2015	37.293033474181804
2016	37.4949787472881
2017	37.71570599074417
2018	37.09603798544506
2019	36.949349704666446
2020	35.144108882619804
2021	34.047854650592434
2022	33.95900399236356
2023	33.68121355682018