Year % (national estimate) 1991 58.86480023195924 1994 61.447867290165966 2000 63.11667275871386 2005 60.97934097533919 2010 54.339642004050944 2012 51.04430957267098 2018 45.13482734204442 2019 44.106435591315055 2020 44.187298069280104 2021 45.93659762354953 2022 46.28841866609288