Year % (national estimate) 2000 11.308 2001 8.94 2002 8.676 2003 10.48 2004 10.812 2005 10.495 2006 11.57 2007 12.694 2008 11.68 2009 11.49 2010 10.845 2011 11.939 2012 11.778 2013 11.303 2014 12.028 2015 11.622 2016 10.623 2017 9.915 2018 10.075 2019 10.612 2020 9.659 2021 9.834 2022 11.081