Year Per 100 People 2000 1.2544 2001 4.4419 2002 8.39966 2003 13.33401 2004 18.8347 2005 24.78659 2006 31.874 2007 34.79993 2008 36.48155 2009 36.60053 2010 38.02818 2011 38.38968 2012 38.8465 2013 40.3064 2014 41.34524 2015 42.27616 2016 42.5701 2017 43.17363