| Rating | 1year | 2year | 3year | 5year | 7year | 10year | 30year | Typical Interest Coverage Ratios |
| Aaa/AAA | 40 | 45 | 50 | 60 | 74 | 85 | 96 | >8.50 |
| Aa1/AA+ | 45 | 55 | 60 | 70 | 84 | 95 | 106 | 6.50-8.50 |
| Aa2/AA | 55 | 60 | 65 | 75 | 89 | 105 | 116 | 6.50-8.50 |
| Aa3/AA- | 60 | 65 | 70 | 85 | 99 | 117 | 136 | 6.50-8.50 |
| A1/A+ | 70 | 80 | 90 | 105 | 119 | 142 | 159 | 5.50-6.50 |
| A2/A | 80 | 90 | 105 | 120 | 140 | 157 | 179 | 4.25-5.50 |
| A3/A- | 90 | 100 | 110 | 130 | 150 | 176 | 196 | 3.00-4.25 |
| Baa1/BBB+ | 105 | 115 | 128 | 145 | 165 | 186 | 208 | 2.50-3.00 |
| Baa2/BBB | 120 | 130 | 140 | 160 | 180 | 201 | 221 | 2.50-3.00 |
| Baa3/BBB- | 140 | 145 | 155 | 172 | 193 | 210 | 232 | 2.50-3.00 |
| Ba1/BB+ | 225 | 250 | 275 | 300 | 325 | 350 | 440 | 2.00-2.50 |
| Ba2/BB | 250 | 275 | 300 | 325 | 350 | 385 | 540 | 2.00-2.50 |
| Ba3/BB- | 300 | 350 | 375 | 425 | 445 | 460 | 665 | 2.00-2.50 |
| B1/B+ | 375 | 400 | 425 | 500 | 550 | 610 | 765 | 1.75-2.00 |
| B2/B | 450 | 500 | 550 | 625 | 670 | 710 | 890 | 1.50-1.75 |
| B3/B- | 500 | 550 | 650 | 750 | 875 | 975 | 1075 | 1.25-1.50 |
| Caa/CCC | 600 | 650 | 800 | 900 | 1025 | 1150 | 1300 | 0.80-1.25 |