Year	% (national estimate)
1985	71.19
1986	70.68
1987	70.87
1988	70.68
1989	71
1990	71.1
1991	71.35
1992	72.23
1993	72.13
1995	75.07
1996	74.89
1997	74.92
1998	75.21
2018	68.99
2019	69.1
2020	68.71
2021	68.91
2022	68.51