"Year" "Number of Cases" "2000" "20" "2001" "20" "2002" "6" "2003" "7" "2004" "30" "2005" "31" "2006" "35" "2007" "25" "2008" "29" "2009" "34" "2010" "40" "2011" "35" "2012" "37" "2013" "33" "2014" "28"