• 1989 to 1989 1
• 1990 to 1991 8
• 1992 to 1994 10
• 1995 to 1996 18
• 1997 to 1999 26
• 2000 to 2001 38
• 2002 to 2004 57
• 2005 to 2006 34
• 2007 to 2009 65
• 2010 to 2011 46
• 2012 to 2014 73
• 2015 to 2015 1