| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 4 |
5%
|
| 0 | 13 |
16.3%
|
|
| 1 | 44 |
55%
|
|
| 2 | 4 |
5%
|
|
| 3 | 10 |
12.5%
|
|
| 4 | 1 |
1.3%
|
|
| 5 | 2 |
2.5%
|
|
| 10 | 1 |
1.3%
|
|
| 12 | 1 |
1.3%
|
|
| Sysmiss | 34 |