| Age (years) | Number | Percentage |
| 40 - 50 | 1 | 6.25 |
| 51 - 60 | 2 | 12.50 |
| 61 - 70 | 6 | 37.50 |
| 71 - 80 | 5 | 31.25 |
| 81 - 90 | 2 | 12.50 |
| Total | 16 | 100.00 |