Table 2. Age distribution of the children participating in the study.
| Age (years) | Frequency (%) |
|---|---|
| 5 | 1 (2%) |
| 6 | 3 (5%) |
| 7 | 10 (16%) |
| 8 | 18 (28%) |
| 9 | 13 (20%) |
| 10 | 11 (17%) |
| 11 | 8 (13%) |
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