"Year" "Number of Cases" "2002" "1" "2003" "2" "2004" "2" "2005" "2" "2006" "2" "2007" "12" "2008" "7" "2009" "5" "2010" "2" "2011" "11" "2012" "21" "2013" "22" "2014" "22"