| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Does not apply | 0 |
0%
|
| 0 | 9 |
47.4%
|
|
| 30 | 2 |
10.5%
|
|
| 200 | 3 |
15.8%
|
|
| 280 | 1 |
5.3%
|
|
| 800 | 3 |
15.8%
|
|
| 1000 | 1 |
5.3%
|
|
| Sysmiss | 496 |