Year	% (national estimate)
1971	17.65338664667424
1981	29.28093128382787
1991	31.57124917474071
1994	22.453898089156787
2000	25.645409621178572
2001	29.950000000000003
2005	25.958076931697434
2010	20.77639682474959
2012	17.431683898926185
2018	11.354469005974575
2019	13.386082608769689
2020	12.534250954690226
2021	13.962366112874427
2022	13.733755567021142
2023	17.462862633287678