| FSL (˚) | k1 (%) | k2 (%) | Δk (10−6) |
| −0.5 | 20.21 | 20.23 | −19 |
| −0.3 | 19.06 | 19.07 | −15 |
| −0.1 | 17.90 | 17.92 | −12 |
| 0 | 17.33 | 17.34 | −93 |
| 0.1 | 16.75 | 16.76 | −69 |
| 0.3 | 15.60 | 15.60 | −14 |
| 0.5 | 14.45 | 14.45 | 52 |