Year	% (national estimate)
1989	64.33
1994	62.15
2005	59.671
2006	59.524
2007	60.011
2008	60.401
2009	60.957
2010	61.924
2011	59.567
2012	60.026
2013	60.748
2014	56.045
2015	60.252
2016	60.022
2017	59.811
2019	61.023
2022	56.519
2023	56.575