Year Number of Cases
2000 10
2001 3
2002 6
2003 5
2004 4
2005 6
2006 12
2007 11
2008 14
2009 8
2010 9
2011 11
2012 6
2013 6
2014 7
2015 3
2016 4
2017 4
2018 8
2019 1
2020 5
2021 3
2022 10
2023 10