| Age ranges (years old) | Frequency | Percentage |
| <20 | 11 | 2.37% |
| 21- 30 | 73 | 15.7% |
| 31 - 40 | 112 | 24.09% |
| 41 - 50 | 90 | 19.35% |
| 51 - 60 | 78 | 16.77% |
| 61 - 70 | 71 | 15.27% |
| 71 - 80 | 19 | 4.09% |
| >80 | 11 | 2.36% |
| Total | 465 | 100% |