Year	% (national estimate)
1994	64.97
1996	69.29
1997	62.93
1998	60.75
2000	59.899
2001	67.968
2002	62.549
2003	62.85
2004	60.205
2005	55.793
2006	56.833
2007	57.524
2008	55.275
2009	54.624
2010	53.621
2011	55.667
2012	54.367
2013	56.551
2014	53.436
2015	53.685
2016	54.409
2017	54.536
2018	55.701
2019	56.697
2020	55.571
2021	54.58
2022	57.162
2023	57.132