| 3 | 11.3 | 25.3 |
| 4 | 16.9 | 27.4 |
| 5 | 15.3 | 28.5 |
| 6 | 17.8 | 32.9 |
| 7 | 14.6 | 26.2 |
| 8 | 12.9 | 27.6 |
| Average ± sd | 14.9 ± 2.1 | 28.0 ± 2.3 |
| C.V*** | 14% | 8.2% |