| Mean square | Proportions of the explained variance (%) | Proportions of the accumulated variance (%) |
| 6.51 | 81.39 | 81.39 |
| 0.33 | 4.16 | 85.55 |
| 0.26 | 3.31 | 88.86 |
| 0.25 | 3.15 | 92.01 |
| 0.20 | 2.55 | 94.56 |
| 0.16 | 1.99 | 96.55 |
| 0.14 | 1.80 | 98.35 |
| 0.13 | 1.65 | 100.00 |