Year	% (national estimate)
1960	75.72
1970	59.78
1989	36.9
1991	57.475
1992	40.3
1998	70.99
1999	71
2000	52.772
2006	35.02
2010	42.899
2013	55.766
2015	46.513
2017	45.968
2022	38.895