Year % (national estimate) 2009 43.4 2010 42.646 2011 43.647 2012 44.035 2013 43.404 2014 41.725 2015 41.643 2016 41.669 2017 41.902 2018 41.878 2019 42.594 2020 40.767 2021 42.02 2022 43.642