Year % (national estimate) 1991 46.67267651874204 1994 46.31668006884239 2000 46.699037499796255 2001 43.946935775793506 2005 45.442147177535375 2010 39.668079532551246 2012 37.98809137778781 2018 33.2666860094936 2019 34.1943785558436 2020 32.614528679435374 2021 34.88615846598746 2022 33.436204662051814