| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Does not apply | 0 |
0%
|
| 0 | 16 |
84.2%
|
|
| 2000 | 1 |
5.3%
|
|
| 5000 | 1 |
5.3%
|
|
| 7000 | 1 |
5.3%
|
|
| Sysmiss | 496 |