Year % (national estimate) 1999 9.4 2000 9.7 2001 9.3 2002 9.6 2003 8.9 2004 8.7 2005 8.7 2006 8.9 2007 11 2008 10.8 2009 11.3 2010 11.5 2011 11.6 2012 11.3 2013 10.3 2014 10 2017 12.314 2018 11.078 2019 10.157 2020 10.949 2021 10.189 2022 10.046