| Value | Category | Cases | |
|---|---|---|---|
| 1 | 18-21 | 4 |
3.1%
|
| 2 | 22-35 | 53 |
41.1%
|
| 3 | 36-59 | 69 |
53.5%
|
| 4 | over60 | 3 |
2.3%
|
| Missing value | 277 |