Year	% (national estimate)
1971	17.65338664667424
1981	29.28093128382787
1991	31.571249174740707
1994	22.453898089156787
2000	25.645409621178576
2001	29.950000000000003
2005	25.958076931697438
2010	20.77639682474959
2012	17.431683898926185
2018	11.354469005974577
2019	13.386082608769689
2020	12.534250954690226
2021	13.962366112874431
2022	13.73375556702114
2023	17.462862633287678