Table 2. Number of participants by age, across the full sample.
| Age: | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| N: | 4 | 14 | 24 | 37 | 46 | 48 | 43 | 140 | 165 | 172 | 146 | 112 | 44 | 9 | 5 |
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