"Year"	"Number of Cases"
"2003"	"1"
"2005"	"1"
"2007"	"2"
"2009"	"5"
"2010"	"4"
"2011"	"2"
"2012"	"1"
"2013"	"2"
"2014"	"2"
"2015"	"3"
"2016"	"2"
"2017"	"6"
"2018"	"3"
"2019"	"6"
"2020"	"6"
"2021"	"6"
"2022"	"7"
"2023"	"2"