Year Number of Cases
2000 8
2001 3
2002 2
2003 3
2004 5
2005 2
2006 9
2007 2
2008 2
2009 4
2010 2
2011 11
2012 1
2013 5
2015 2
2016 5
2017 5
2019 5
2020 2
2021 4
2022 2
2023 3