Year Number of Cases
2000 4
2001 6
2002 7
2003 6
2004 15
2005 14
2006 20
2007 13
2008 12
2009 23
2010 25
2011 39
2012 22
2013 16
2014 19
2015 20
2016 30
2017 43
2018 35
2019 37
2020 27
2021 27
2022 31
2023 53