| Age in years | Male | Female | Total | |||
| n (%) | n (%) | n (%) | ||||
| ≤20 | 7 | (9.7) | 5 | (10) | 12 | (9.8) |
| 21 - 40 | 22 | (30.6) | 18 | (36) | 40 | (32.8) |
| 41 - 60 | 25 | (34.7) | 17 | (34) | 42 | (34.4) |
| ≥60 | 18 | (25) | 10 | (20) | 28 | (23) |
| Total | 72 | (100) | 50 | (100) | 122 | (100) |