Credit Ratings| Credit Ratings History | S&P | Moody's | Fitch Ratings | DBRS Ltd | AM Best | | Long-Term Issuer | BBB- (OS)
10/19/2010 | Baa3 (OS)
4/15/2010 | BBB (OS)
11/21/2012 | -
| -
| | | BBB- (ON)
11/12/2009 | Baa3
3/10/2009 | BBB (OS)
5/24/2012 | -
| -
| | | BBB (ON)
11/21/2008 | Baa1 (WN)
12/17/2008 | BBB (OS)
11/28/2011 | -
| -
| | | BBB (WN)
9/3/2008 | Baa1 (OS)
10/14/2005 | BBB (OS)
6/10/2011 | -
| -
| | Senior Unsecured | BBB-
11/12/2009 | Baa3
3/10/2009 | BBB-
11/21/2012 | -
| -
| | | BBB
9/3/2008 | Baa1 (WN)
12/17/2008 | BBB-
5/24/2012 | -
| -
| | | BBB+
4/13/2006 | Baa1
10/14/2005 | BBB-
11/28/2011 | -
| -
| | | BBB+
10/22/2004 | Baa1
9/29/2004 | BBB-
6/10/2011 | -
| -
| |
| | Ratings Watch Action Legend: (WP) Watch Positive, (WN) Watch Negative, (WU) Watch Uncertain, (WR) Watch Removed, (OP) Outlook Positive, (ON) Outlook Negative, (OS) Outlook Stable, (OD) Outlook Developing |
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