Year	Number of
2000	1
2001	1
2002	1
2003	1
2004	1
2005	1
2006	1
2007	1
2008	1
2009	1
2010	1
2011	1
2012	3
2013	1
2014	0
2015	1
2016	1
2017	1
2018	0
2019	0
2020	0