PREVIOUS BOND-RATING UPDATES

• Bond-Rating Update for June 2007 (7/13/2007)
• Bond-Rating Update for May 2007 (6/15/2007)
• Bond-Rating Update for April 2007 (5/11/2007)
• Bond-Rating Update for March 2007 (4/13/2007)
• Bond-Rating Update for February 2007 (3/16/2007)
• Bond-Rating Update for January 2007 (2/16/2007)
• Bond-Rating Update for December 2006 (1/12/2007)
• Bond-Rating Update for November 2006 (12/15/2006)
• Bond-Rating Update for October 2006 (11/17/2006)
• Bond-Rating Update for September 2006 (10/13/2006)
• Bond-Rating Update for August 2006 (9/15/2006)
• Bond-Rating Update for July 2006 (8/11/2006)
• Bond-Rating Update for June 2006 (7/14/2006)
• Bond-Rating Update for May 2006 (6/16/2006)
• Bond-Rating Update for March 2006 (4/14/2006)
• Bond-Rating Update for February 2006 (3/17/2006)
• Bond-Rating Update for January 2006 (2/10/2006)
• Bond-Rating Update for December 2005 (1/13/2006)
• Bond-Rating Update for November 2005 (12/16/2005)
• Bond-Rating Update for October 2005 (11/18/2005)
• Bond-Rating Update for September 2005 (10/14/2005)
• Bond-Rating Update for August 2005 (9/16/2005)
• Bond-Rating Update for July 2005 (8/12/2005)
• Bond-Rating Update for June 2005 (7/22/2005)
• Bond-Rating Update for May 2005 (6/24/2005)
• Bond-Rating Update for April 2005 (5/20/2005)
• Bond-Rating Update for March 2005 (4/15/2005)
• Bond-Rating Update for February 2005 (3/18/2005)
• Bond-Rating Update for January 2005 (2/25/2005)
• Bond-Rating Update for December 2004 (1/21/2005)
• Bond-Rating Update for November 2004 (12/17/2004)
• Bond-Rating Update for October 2004 (11/26/2004)
• Bond-Rating Update for September 2004 (10/22/2004)
• Bond-Rating Update for August 2004 (9/17/2004)
• Bond-Rating Update for July 2004 (8/13/2004)
• Bond-Rating Update for June 2004 (7/16/2004)
• Bond-Rating Update for May 2004 (6/18/2004)
• Bond-Rating Update for April 2004 (5/14/2004)
• Bond-Rating Update for March 2004 (4/30/2004)
• Bond-Rating Update for February 2004 (3/19/2004)
• Bond-Rating Update for January 2004 (2/13/2004)
• Bond-Rating Update for December 2003 (1/16/2004)
• Bond-Rating Update for November 2003 (12/19/2003)
• Bond-Rating Update for October 2003 (11/21/2003)
• Bond-Rating Update for September 2003 (10/17/2003)
• Bond-Rating Update for August 2003 (9/12/2003)
• Bond-Rating Update for July 2003 (8/15/2003)
• Bond-Rating Update for June 2003 (7/18/2003)
• Bond-Rating Update for May 2003 (6/13/2003)
• Bond-Rating Update for April 2003 (5/16/2003)
• Bond-Rating Update for March 2003 (4/18/2003)
• Bond-Rating Update for February 2003 (3/14/2003)
• Bond-Rating Update for January 2003 (2/14/2003)
• Bond-Rating Update for December 2002 (1/10/2003)
• Bond-Rating Update for November 2002 (12/13/2002)
• Bond-Rating Update for October 2002 (11/15/2002)
• Bond-Rating Update for September 2002 (10/11/2002)
• Bond-Rating Update for August 2002 (9/13/2002)
• Bond-Rating Update for July 2002 (8/12/2002)
• Bond-Rating Update for June 2002 (7/12/2002)
• Bond-Rating Update for May 2002 (6/21/2002)
• Bond-Rating Update for April 2002 (5/17/2002)
• Bond-Rating Update for March 2002 (4/12/2002)
• Bond-Rating Update for February 2002 (3/22/2002)
• Bond-Rating Update for January 2002 (3/1/2002)
• Bond-Rating Update for December 2001 (1/18/2002)
• Bond-Rating Update for November 2001 (12/14/2001)
• Bond-Rating Update for October 2001 (11/16/2001)
• Bond-Rating Update for August 2001 (9/14/2001)
• Bond-Rating Update for July 2001 (8/17/2001)
• Bond-Rating Update for June 2001 (7/13/2001)
• Bond-Rating Update for May 2001 (6/15/2001)
• Bond-Rating Update for April 2001 (5/18/2001)
• Bond-Rating Update for March 2001 (4/20/2001)
• Bond-Rating Update for February 2001 (3/16/2001)
• Bond-Rating Update for January 2001 (2/16/2001)
• Bond-Rating Update for December 2000 (1/12/2001)
• Bond-Rating Update for November 2000 (12/15/2000)
• Bond-Rating Update for October 2000 (11/10/2000)
• Bond-Rating Update for September 2000 (10/13/2000)
• Bond-Rating Update for August 2000 (9/15/2000)
• Bond-Rating Update for July 2000 (8/11/2000)
• Bond-Rating Update for June 2000 (7/14/2000)
• Bond-Rating Update for May 2000 (6/9/2000)
• Bond-Rating Update for April 2000 (5/19/2000)
• Bond-Rating Update for March 2000 (4/21/2000)
• Bond-Rating Update for February 2000 (3/10/2000)
• Bond-Rating Update for January 2000 (2/11/2000)
• Bond-Rating Update for December 1999 (1/14/2000)
• Bond-Rating Update for November 1999 (12/10/1999)
• Bond-Rating Update for October 1999 (11/12/1999)
• Bond-Rating Update for September 1999 (10/15/1999)
• Bond-Rating Update for August 1999 (9/10/1999)
• Bond-Rating Update for July 1999 (8/13/1999)
• Bond-Rating Update for June 1999 (7/23/1999)
• Bond-Rating Update for May 1999 (6/18/1999)