Year % (national estimate) 1985 45.15 1991 34.8 1994 39 1996 34.765 1998 36.65 2000 40.32 2006 42.193 2009 44.833 2010 41.54 2013 49.11 2019 45.958 2020 47.166 2021 44.115 2022 44.485 2023 46.106