Year % (national estimate) 2001 36.437 2006 39.816 2007 40.324 2008 39.534 2009 39.808 2010 39.275 2011 38.474 2012 37.458 2013 36.083 2014 34.202 2015 38.838 2016 38.109 2017 39.699 2018 40.197 2019 39.116 2020 38.454 2021 39.68 2022 35.979 2023 33.057