Year	% (national estimate)
1994	56.112
1995	55.239
1996	52.699
1997	51.381
1998	51.277
1999	50.72
2000	48.614
2001	47.24
2002	47.662
2003	46.379
2004	47.406
2005	48.726
2006	48.997
2007	50.833
2008	51.526
2009	50.742
2010	49.086
2011	49.956
2012	50.369
2013	49.862
2014	50.017
2015	48.781
2016	49.104
2017	49.083
2018	48.915
2019	48.505
2020	48.365
2021	45.668
2022	48.179
2023	49.8