Year	% (national estimate)
1974	47.88
1993	48.6
1994	51.8
1999	58.78
2001	53.93
2002	52
2003	52.2
2005	52.707
2006	49.804
2007	48.329
2008	49.44
2009	50.429
2010	51.467
2011	49.888
2012	48.11
2013	53.182
2014	53.797
2015	54.585
2016	53.379
2017	54.97
2018	57.827
2019	55.182
2020	54.376
2021	57.4
2022	58.252
2023	50.593