Year Number of Cases
2000 4
2001 1
2002 3
2003 1
2004 3
2005 1
2006 2
2007 3
2008 3
2009 2
2010 5
2011 1
2012 3
2013 1
2014 2
2015 1
2016 2
2017 3
2018 1
2019 1
2020 3
2021 5
2022 8
2023 7