| Value | Category | Cases | |
|---|---|---|---|
| 1 | 18-21 | 19 |
4%
|
| 2 | 22-35 | 271 |
56.7%
|
| 3 | 36-59 | 186 |
38.9%
|
| 4 | over60 | 2 |
0.4%
|
| Missing value | 394 |