Year % (national estimate) 2008 8.583 2009 8.621 2010 8.682 2011 7.911 2012 7.143 2013 8.581 2014 9.318 2015 12.746 2016 12.461 2017 11.529 2018 5.461 2019 4.54 2020 4.18 2021 4.684 2022 3.87