Year	% (national estimate)
1979	37.55
1989	34.75
1995	44.92
1998	50.26
1999	45.59
2001	42.14
2002	42.87
2003	41.4
2014	44.04
2015	40.57
2016	38.9
2017	38.55
2018	37.157
2019	40.529
2020	35.654
2021	33.048