| Company | Ranking | Outlook | Date |
|---|---|---|---|
| Moody’s | Ba2 | Steady | Sep 06 2022 |
| S&P | BB+ | Steady | Might 26 2022 |
| S&P | BB | Optimistic | Might 21 2021 |
| Fitch | BB | Optimistic | Apr 01 2021 |
| Moody’s | Ba3 | Optimistic | Mar 18 2021 |
| Fitch | BB | Steady | Apr 08 2020 |
| Moody’s | Ba3 | Detrimental | Dec 18 2019 |
| Moody’s | Ba3 | Beneath Evaluate | Oct 09 2019 |
| Fitch | BB | Optimistic | Might 09 2019 |
| S&P | BB | Steady | Apr 05 2019 |
| Moody’s | Ba3 | Steady | Aug 10 2018 |
| Fitch | BB | Steady | Might 15 2018 |
| Fitch | BB- | Optimistic | Might 18 2017 |
| Moody’s | B1 | Optimistic | Apr 28 2017 |
| Fitch | BB- | Steady | Nov 03 2014 |
| Moody’s | B1 | Steady | Jul 29 2014 |
| Fitch | B+ | Optimistic | Jan 23 2014 |
| Moody’s | B2 | Steady | Sep 28 2012 |
| S&P | BB- | Steady | Jun 06 2012 |
| S&P | BB- | Detrimental | Aug 19 2011 |
| S&P | BB | Detrimental | Dec 23 2010 |
| Moody’s | B1 | Detrimental | Dec 15 2010 |
| Fitch | B+ | Steady | Jul 28 2010 |
| Fitch | BB- | Detrimental Watch | Mar 11 2010 |
| Fitch | BB- | Steady | Jun 29 2009 |
| Moody’s | Ba3 | Detrimental | Jun 04 2008 |
| Fitch | BB- | Detrimental | Might 29 2008 |
| Moody’s | Ba3 | Optimistic | Mar 15 2007 |
| Moody’s | Ba3 | Steady | Jul 07 2005 |
| Fitch | BB- | Steady | Nov 06 2003 |
| Moody’s | B1 | Optimistic | Might 11 2003 |
| Fitch | BB- | Optimistic | Jun 11 2002 |
| Moody’s | B1 | Steady | Jul 09 1998 |
| Moody’s | Ba3 | Steady | Apr 17 1997 |
