Year	% (national estimate)
1995	55.4
1997	56.17
1998	55.39
1999	55.428
2000	54.488
2001	53.654
2002	47.388
2003	45.939
2004	45.714
2005	43.855
2006	44.913
2007	44.891
2008	44.62
2009	43.91
2010	43.333
2011	43.107
2012	43.429
2013	43.078
2014	43.344
2015	42.578
2016	42.221
2017	44.035
2018	44.04
2019	44.023
2020	43.205
2021	38.954
2022	40.159
2023	39.781