Year Per 100 People 2000 0.51778 2001 1.95751 2002 4.51619 2003 8.72536 2004 14.60711 2005 21.4005 2006 26.63209 2007 30.87656 2008 33.06005 2009 34.55912 2010 35.27217 2011 36.0918 2012 37.06547 2013 37.63408 2014 38.46322 2015 39.36943 2016 40.1431 2017 40.22528