Year	% (national estimate)
1971	43.43155884685425
1981	52.4515420002324
1991	46.99214417806881
1994	43.12868514136288
2000	45.67880895673412
2001	42.43
2005	45.15346584059613
2010	38.28417229920671
2012	35.00027892047057
2018	28.747624751233054
2019	29.96819066083652
2020	28.75676112094689
2021	30.992820786864353
2022	29.66839701238587
2023	31.732644085085198