| 2026-05-03 | Like the best bets |
| 2026-02-17 | Least risky |
| 2025-03-16 | Like the best bonds, perhaps |
| 2024-10-08 | Most secure |
| 2023-08-13 | Like AAA, among all bond ratings |
| 2023-04-21 | Best-kept |
| 2019-07-05 | Like bonds designated AAA |
| 2018-11-25 | Most conservative |
| 2014-06-15 | Most conservative |
| 2013-03-31 | Least volatile, perhaps |
| 2011-08-07 | Best in crash-test ratings |
| 2007-11-22 | Like blue-chip stocks |
| 2004-11-05 | Least vulnerable |
| 2002-12-16 | Least risky |
| 2002-03-31 | Least risky |
| 2000-12-02 | Most dependable |
| 1999-12-31 | Like blue chip stocks |
| 1996-04-04 | Least perilous |