| Value | Category | Cases | |
|---|---|---|---|
| 18 | 1 |
25%
|
|
| 21 | 1 |
25%
|
|
| 36 | 1 |
25%
|
|
| 57 | 1 |
25%
|
|
| Sysmiss | Don't know | 0 | |
| Sysmiss | Refused to answer | 0 | |
| Sysmiss | Not applicable | 0 | |
| Sysmiss | 4453 |