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Record occurrence (%) of components N1, P2, N2 and P3 considering the 7-10 years; 11-20 years and 21-30 years age ranges.
| Age range (years) | N1 | P2 | N2 | P3 |
|---|---|---|---|---|
| 7-10 (n = 9) | 22.22% | 66.66% | 100% | 77.77% |
| 11-20 (n = 10) | 90% | 80% | 100% | 100% |
| 21-30 (n = 12) | 100% | 100% | 83.33% | 100% |
