| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
2.8%
|
| 1 | 36 |
33%
|
|
| 2 | 18 |
16.5%
|
|
| 3 | 16 |
14.7%
|
|
| 4 | 21 |
19.3%
|
|
| 5 | 5 |
4.6%
|
|
| 6 | 5 |
4.6%
|
|
| 8 | 4 |
3.7%
|
|
| 20 | 1 |
0.9%
|
|
| Sysmiss | 48 |