Year	% (national estimate)
1991	67.451
1992	68.59
1993	69.742
1994	67.93
1995	65.209
1996	65.709
1997	66.855
1998	67.412
1999	67.258
2000	64.676
2001	63.032
2002	59.451
2003	58.792
2004	58.44
2005	58.595
2006	58.95
2007	58.514
2008	57.804
2009	55.071
2010	55.502
2011	55.027
2012	55.344
2013	54.544
2014	53.681
2015	53.39
2016	53.123
2017	53.155
2018	52.948
2019	53.497
2020	47.212
2021	52.099
2022	52.8
2023	52.775