Year	% (national estimate)
1992	74
1999	70.8
2000	72.4
2001	71.6
2002	70.5
2006	70.8
2007	71.359
2008	71.722
2009	71.547
2012	74.961
2013	75.973
2014	75.941
2015	75.7
2017	75.882
2018	76.331
2019	78.277
2020	76.691
2021	76.418
2022	77.541
2023	77.704