| Age range (year) | Frequency | Pourcentage (%) |
| 12 - 30 | 9 | 3.42 |
| 31 - 45 | 20 | 7.60 |
| 46 - 60 | 64 | 24.33 |
| 61 - 75 | 112 | 42.58 |
| >75 | 58 | 22.05 |
| Total | 263 | 100.00 |