Year	% (national estimate)
1997	52.61430970972655
1998	51.96732737113801
2000	54.07331973773038
2001	53.52911952916033
2002	52.838590881849285
2003	52.328512281581375
2004	53.0872735872667
2005	52.94019757377399
2006	53.06870963638271
2007	53.89926880660841
2008	55.15079413295558
2009	55.248781935327024
2010	56.1285112696816
2011	56.8582919348358
2012	57.23532629464346
2013	57.32657240184282
2014	57.35412002595416
2015	58.126565175765045
2016	57.774960188627134
2017	56.357877492522604
2018	56.688797449321044
2019	55.87116116994559
2020	53.718270795879874
2021	53.99317285738803
2022	57.41841294096162