Year Per 100 People 1999 0.02915 2000 0.84084 2001 3.6846 2002 8.50597 2003 14.43678 2004 19.15604 2005 26.44832 2006 29.27254 2007 32.77392 2008 34.10179 2009 33.87433 2010 34.0938 2011 34.50148 2012 34.84207 2013 35.91944 2014 36.42677 2015 37.68013 2016 38.50617 2017 39.86986