"Year"	"Number of Cases"
"2008"	"1"
"2009"	"4"
"2010"	"14"
"2011"	"9"
"2012"	"20"
"2013"	"9"
"2014"	"14"
"2015"	"9"
"2016"	"8"
"2017"	"7"
"2019"	"2"
"2020"	"1"
"2021"	"2"