| ∆Tmax | Coefficients | ||
| A = ∆D/∆YS | B | R2 | |
| 2.0 | −2.321 | 4765.3 | 0.99981 |
| 1.9 | −2.398 | 4913 | 0.99992 |
| 1.8 | −2.477 | 5064.5 | 0.99995 |
| 1.7 | −2.556 | 5215.6 | 0.99993 |
| 1.6 | −2.635 | 5366.4 | 0.99983 |
| 1.5 | −2.714 | 5516.7 | 0.99951 |