Year % (national estimate) 1991 31.422052158249762 1994 23.28119809415136 2000 28.906135719978565 2005 26.43207891582082 2010 25.707944770793738 2012 21.321525538026037 2018 15.26322618044658 2019 19.31531710646067 2020 18.19771189543233 2021 17.839210354606987 2022 21.672345879805036