| Value | Category | Cases | |
|---|---|---|---|
| 1 | 18-21 | 1 |
2.4%
|
| 2 | 22-35 | 18 |
42.9%
|
| 3 | 36-59 | 21 |
50%
|
| 4 | over60 | 2 |
4.8%
|
| Missing value | 66 |