| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 9 |
45%
|
| 30 | 1 |
5%
|
|
| 40 | 1 |
5%
|
|
| 50 | 1 |
5%
|
|
| 70 | 2 |
10%
|
|
| 75 | 1 |
5%
|
|
| 85 | 1 |
5%
|
|
| 90 | 2 |
10%
|
|
| 95 | 1 |
5%
|
|
| 100 | 1 |
5%
|
|
| Sysmiss | 83 |