| Age group | Frequency | Percentage (%) |
| ≤25 y | 9 | 7.4 |
| 26 - 29 y | 33 | 27.3 |
| 30 - 34 y | 38 | 31.4 |
| 35 - 39 y | 20 | 16.5 |
| 40 - 44 y | 18 | 14.9 |
| ≥45 y | 3 | 2.5 |
| Total | 121 | 100 |