• 1991 to 1991 1
• 1992 to 1992 4
• 1993 to 1993 0
• 1994 to 1994 3
• 1995 to 1995 0
• 1996 to 1996 0
• 1997 to 1997 2
• 1998 to 1998 1
• 1999 to 1999 1