09/01/2006 - 10/01/2006 11/01/2006 - 12/01/2006 03/01/2007 - 04/01/2007 04/01/2007 - 05/01/2007 09/01/2007 - 10/01/2007 01/01/2008 - 02/01/2008 03/01/2008 - 04/01/2008