| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| 0 | 1 |
25%
|
|
| 3 | 1 |
25%
|
|
| 5 | 1 |
25%
|
|
| 10 | 1 |
25%
|
|
| Sysmiss | 3145 |