| Value | Category | Cases | |
|---|---|---|---|
| 1 | 18-21 | 18 |
4.3%
|
| 2 | 22-35 | 191 |
46.1%
|
| 3 | 36-59 | 185 |
44.7%
|
| 4 | over60 | 20 |
4.8%
|
| Missing value | 1814 |