Group | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 |
X | 5 | 5 | 6 | 7 | 9 | 12 | 12 | 15 | 18 | 21 | 17 | 18 | 20 | 25 | 34 | 43 |