April 1996 to January 1997
April 1997 to January 1998
April 1998 to January 1999
April 1999 to January 2000
April 2000 to January 2001
April 2001 to January 2002
April 2002 to January 2003
April 2003 to January 2004
April 2004 to January 2005
April 2005 to January 2006
April 2006 to January 2007
April 2007 to January 2008
April 2008 to January 2009
April 2009 to January 2010
April 2010 to January 2011
April 2011 to January 2012