| Value | Category | Cases | |
|---|---|---|---|
| 1 | 18-21 | 1 |
2.3%
|
| 2 | 22-35 | 15 |
34.1%
|
| 3 | 36-59 | 26 |
59.1%
|
| 4 | over60 | 2 |
4.5%
|
| Missing value | 35 |