| Value | Category | Cases | |
|---|---|---|---|
| 1 | 18-21 | 2 |
1.3%
|
| 2 | 22-35 | 56 |
35.9%
|
| 3 | 36-59 | 85 |
54.5%
|
| 4 | over60 | 13 |
8.3%
|
| Missing value | 112 |