Year % (national estimate) 2000 6.335 2001 4.992 2002 5.044 2003 6.349 2004 6.279 2005 6.175 2006 6.534 2007 7.373 2008 8.387 2009 8.283 2010 7.593 2011 8.501 2012 8.258 2013 7.422 2014 8.037 2015 10.379 2016 10.697 2017 11.181 2018 9.992 2019 10.265 2020 8.811 2021 9.553 2022 10.642