Year	% (national estimate)
1999	38.27237960326906
2001	36.82979173028234
2002	38.185323740081415
2003	36.19000432068223
2004	36.17044891708879
2005	36.54851607510173
2006	37.82177775443101
2007	38.004113906379885
2008	37.018410409204776
2009	35.77841750661223
2011	35.11042869288621
2012	34.90778202469577
2013	34.2099967184468
2014	33.62097105339652
2015	33.33134957951211
2016	32.43002824772152
2017	31.722731629818686
2018	32.11463832369188
2019	32.700937567061445
2020	27.857154132567644
2021	31.98071964686725
2022	34.31744649630176
2023	34.50118413940479