05/01/2002 - 05/31/2002 06/01/2002 - 06/30/2002 09/01/2002 - 09/30/2002 06/01/2003 - 06/30/2003 04/01/2004 - 04/30/2004 05/01/2004 - 05/31/2004 11/01/2004 - 11/30/2004 09/01/2005 - 09/30/2005