Credit Ratings
-
'A-' Since March 25, 2013
-
'A3' Since January 23, 2017
-
'A' Since September 8, 2017
| Year | S&P | Moody's | Fitch |
|---|---|---|---|
| 2019 | A- | A3 | A |
| 2018 | A- | A3 | A |
| 2017 | A- | A3 | A |
| 2016 | A- | Baa1 | A- |
| 2015 | A- | Baa1 | A- |
| 2014 | A- | Baa1 | A- |
| 2013 | A- | A3 | A- |
| 2012 | A | A3 | A |
| 2011 | A | A3 | A |
| 2010 | A | A3 | A |
| 2009 | A- | A3 | A |
| 2008 | A- | A3 | A |
| 2007 | A- | A3 | |
| 2006 | A- | A3 | |
| 2005 | A- | A3 | |
| 2004 | A- | Baa1 | |
| 2003 | A- | Baa1 | |
| 2002 | BBB+ | Baa2 | |
| 2001 | BBB+ | Baa2 | |
| 2000 | BBB | Baa2 | |
| 1999 | BBB- | Baa3 |