| N˚ | % of absorption (d.b) | |
| Species 1 | Species 2 | |
| 1 | 15.95 | 18.07 |
| 2 | 16.39 | 19.64 |
| 3 | 18.72 | 18.81 |
| 4 | 18.53 | 21.00 |
| 5 | 18.89 | 17.79 |
| 6 | 16.22 | 19.45 |
| 7 | 16.55 | 18.68 |
| 8 | 18.31 | 19.36 |
| 9 | 15.73 | 19.57 |
| 10 | 16.92 | 22.39 |
| 11 | 18.98 | 21.73 |
| 12 | 16.99 | 22.09 |
| 13 | 18.14 | 17.42 |
| 14 | 16.17 | 24.08 |
| 15 | 17.42 | 23.21 |
| 16 | 17.22 | 23.58 |
| 17 | 18.32 | 20.53 |
| 18 | 16.32 | 20.23 |
| 19 | 17.62 | 21.43 |
| 20 | 17.02 | 19.43 |
| A | 17.32 | 20.42 |
| S | 1.06 | 1.95 |