"Year" "Number of Cases" "2000" "4" "2001" "4" "2002" "1" "2003" "1" "2004" "7" "2005" "7" "2006" "4" "2007" "4" "2008" "9" "2009" "8" "2010" "9" "2011" "7" "2012" "15" "2013" "12" "2014" "17"