Year Number of Cases
2000 2
2001 4
2002 4
2003 7
2004 3
2005 5
2006 5
2007 4
2008 2
2009 2
2010 1
2011 4
2012 2
2013 1
2014 7
2015 1
2016 1
2017 7
2018 1
2019 5
2020 6
2021 5
2022 3
2023 3