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Long-term debt
 |
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Year |
|
Moody's |
|
Standard & Poors |
|
Fitch Ratings |
|
DBRS |
|
|
|
|
|
2007 |
|
Aa2 |
|
A+ |
|
AA |
|
A (high) |
|
|
|
|
|
2006 |
|
Aa2 |
|
A+ |
|
AA |
|
A (high) |
|
|
|
|
|
2005 |
|
A1 |
|
A+ |
|
AA |
|
A |
|
|
|
|
|
2004 |
|
A1 |
|
A+ |
|
AA |
|
A |
|
|
|
|
|
2003 |
|
A1 |
|
A+ |
|
AA |
|
A |
|
|
|
|
|
2002 |
|
A1 |
|
A+ |
|
AA |
|
A |
|
|
|
|
|
2001 |
|
A1 |
|
A+ |
|
AA |
|
A |
|
|
|
|
|
2000 |
|
A2 |
|
A+ |
|
AA |
|
A |
|
|
|
|
|
1999 |
|
A2 |
|
A+ |
|
AA(1) |
|
A (Low) |
|
|
|
|
|
1998 |
|
A2 |
|
A+ |
|
AA(1) |
|
A (Low) |
|
|
|
|
|
1997 |
|
A2 |
|
A+ |
|
AA(1) |
|
A (Low) |
|
|
|
|
|
1996 |
|
A2 |
|
A+ |
|
AA(1) |
|
A (Low) |
|
|
|
|
|
1995 |
|
A2 |
|
A+ |
|
AA(1) |
|
A |
|
|
|
|
|
1994 |
|
A1 |
|
A+ |
|
AA(1) |
|
A |
|
|
|
|
|
1993 |
|
A1 |
|
A+ |
|
AA(1) |
|
A |
|
|
|
|
|
1992 |
|
Aa3 |
|
AA- |
|
AA(1) |
|
A (High) |
|
|
Commercial paper
 |
 |
 |
 |
 |
 |
 |
 |
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 |
 |
|
|
Year |
|
Moody's |
|
Standard & Poors |
|
Fitch Ratings |
|
DBRS |
|
|
|
|
|
2007 |
|
P-1 |
|
A-1+ |
|
F1+ |
|
R-1 (Middle) |
|
|
|
|
|
2006 |
|
P-1 |
|
A-1+ |
|
F1+ |
|
R-1 (Middle) |
|
|
|
|
|
2005 |
|
P-1 |
|
A-1+ |
|
F1+ |
|
R-1 (Low) |
|
|
|
|
|
2004 |
|
P-1 |
|
A-1+ |
|
F1+ |
|
R-1 (Low) |
|
|
|
|
|
2003 |
|
P-1 |
|
A-1+ |
|
F1+ |
|
R-1 (Low) |
|
|
|
|
|
2002 |
|
P-1 |
|
A-1+ |
|
F1+ |
|
R-1 (Low) |
|
|
|
|
|
2001 |
|
P-1 |
|
A-1+ |
|
F1+ |
|
R-1 (Low) |
|
|
|
|
|
2000 |
|
P-1 |
|
A-1+ |
|
F1+ |
|
R-1 (Low) |
|
|
|
|
|
1999 |
|
P-1 |
|
A-1+ |
|
D-1+(1) |
|
R-1 (Low) |
|
|
|
|
|
1998 |
|
P-1 |
|
A-1+ |
|
D-1+(1) |
|
R-1 (Low) |
|
|
|
|
|
1997 |
|
P-1 |
|
A-1+ |
|
D-1+(1) |
|
R-1 (Low) |
|
|
|
|
|
1996 |
|
P-1 |
|
A-1+ |
|
D-1+(1) |
|
R-1 (Low) |
|
|
|
|
|
1995 |
|
P-1 |
|
A-1+ |
|
D-1+(1) |
|
R-1 (Low) |
|
|
| (1) Duff & Phelps Credit Ratings |
|
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