| Level | x1 | x2 | x3 | x4 |
| −1 | 4.40 | 1.10 | 50.00 | 8.00 |
| −0.58 | 5.03 | 1.27 | 62.60 | 8.42 |
| 0.58 | 6.77 | 1.73 | 97.40 | 9.58 |
| 1 | 7.40 | 1.90 | 110.00 | 10.00 |
| 0 | 5.90 | 1.50 | 80.00 | 9.00 |
| Decoder | 1.5x + 5.9 | 0.4x + 1.5 | 30x + 80 | x + 9 |