| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
3.8%
|
| 0 | 22 |
27.5%
|
|
| 1 | 11 |
13.8%
|
|
| 2 | 12 |
15%
|
|
| 3 | 7 |
8.8%
|
|
| 4 | 4 |
5%
|
|
| 5 | 5 |
6.3%
|
|
| 6 | 5 |
6.3%
|
|
| 7 | 2 |
2.5%
|
|
| 8 | 1 |
1.3%
|
|
| 10 | 2 |
2.5%
|
|
| 15 | 1 |
1.3%
|
|
| 18 | 1 |
1.3%
|
|
| 20 | 1 |
1.3%
|
|
| 50 | 1 |
1.3%
|
|
| 63 | 1 |
1.3%
|
|
| 100 | 1 |
1.3%
|
|
| Sysmiss | 160 |