| Value | Category | Cases | |
|---|---|---|---|
| 1 | 18-21 | 1 |
2.3%
|
| 2 | 22-35 | 15 |
34.9%
|
| 3 | 36-59 | 26 |
60.5%
|
| 4 | over60 | 1 |
2.3%
|
| Missing value | 37 |