"Year" "Number of Cases" "2000" "5" "2001" "9" "2002" "2" "2003" "2" "2004" "1" "2005" "1" "2006" "2" "2007" "2" "2008" "2" "2009" "4" "2010" "20" "2011" "10" "2012" "3" "2013" "4" "2014" "1"