Year % (national estimate) 1985 66.27 1991 68.4 1994 58.7 1996 48.336 1998 57.88 2000 58.11 2006 55.977 2009 60.544 2010 56.66 2013 63.13 2019 56.964 2020 58.449 2021 55.635 2022 54.805 2023 58.494