| Age group | Frequency | Percentage |
| <30 years | 17 | 17.5% |
| 30 - 40 years | 11 | 11.3% |
| 41 - 50 years | 15 | 15.5% |
| 51 - 60 years | 17 | 17.5% |
| >60 years | 37 | 38.1% |
| Total | 97 | 100.0% |