Year	% (national estimate)
1980	49.61
1985	51.3
2000	64.2
2002	65
2003	65.874
2004	61.237
2006	70.86
2010	58.345
2011	58.867
2012	63.318
2013	58.404
2014	59.082
2015	59.077
2016	59.122
2017	59.443
2018	59.122
2019	57.871
2021	61.569
2022	58.403