| Size class [mm] | Share % | Cumulative % |
| <2.000 | 1.20% | 1.20% |
| 2.000 - 3.150 | 1.10% | 2.30% |
| 3.150 - 8.000 | 74.30% | 76.60% |
| 8.000 - 16.000 | 23.40% | 100% |
| >16.000 | 0.00% | 100% |