• 1991 to 1991 1
• 1992 to 1993 0
• 1994 to 1995 1
• 1996 to 1997 2
• 1998 to 1999 2
• 2000 to 2001 7
• 2002 to 2003 15
• 2004 to 2005 4
• 2006 to 2007 3
• 2008 to 2009 0
• 2010 to 2011 0
• 2012 to 2012 1