| S&P | | Updates | Long-term LCY
Rating / Outlook | Long-term FCY
Rating / Outlook | | 31 Jul 2008 | A+/Stable | A+/Stable | | 26 Jul 2007 | A/Positive | A/Positive | | 27 Jul 2006 | A/Stable | A/Stable | | 20 Jul 2005 | A-/Positive | A-/Positive | | 18 Feb 2004 | BBB+/Positive | BBB+/Positive | | 15 Apr 2003 | | BBB/Positive | | 20 Jul 1999 | | BBB/Stable | | 16 Jul 1998 | | BBB+/Negative | | 14 May 1997 | | BBB+/Stable | | 19 Jul 1993 | | BBB/Positive | | 20 Feb 1992 | | BBB/Stable | | 27 Jul 1988 | | Satisfactory |
| | R&I | | Updates | Long-term LCY
Rating / Outlook | Long-term FCY
Rating / Outlook | | 26 Jul 2007 | | A+/Stable | | 25 Apr 2006 | | A/Positive | | 15 Mar 2005 | | A/Stable | | 28 Jan 2004 | | A/Stable | | 26 Dec 2002 | | A/Stable | | 21 Dec 2001 | | A/Stable | | 23 Feb 2001 | | A | | 29 Nov 2000 | | (A+) | | 16 Mar 2000 | | (A+) | | 30 Jul 1998 | | A+ | | 15 Jun 1998 | | (AA-) |
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