Year % (national estimate) 1991 46.20015667508219 1994 43.08135573955027 2000 45.535127138403155 2001 51.60142569254347 2005 49.38780463312275 2010 45.36736072727063 2012 44.64338135110699 2018 41.45010479496921 2019 44.88755397199838 2020 46.4603888925647 2021 47.10902967878242 2022 47.16101749349171