"Year" "Number of Cases" "2000" "31" "2001" "28" "2002" "18" "2003" "41" "2004" "22" "2005" "12" "2006" "19" "2007" "23" "2008" "27" "2009" "22" "2010" "21" "2011" "20" "2012" "17" "2013" "21" "2014" "33"