| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 25 |
19.1%
|
| 0 | 28 |
21.4%
|
|
| 1 | 11 |
8.4%
|
|
| 2 | 6 |
4.6%
|
|
| 3 | 3 |
2.3%
|
|
| 5 | 13 |
9.9%
|
|
| 7 | 1 |
0.8%
|
|
| 8 | 1 |
0.8%
|
|
| 10 | 11 |
8.4%
|
|
| 15 | 1 |
0.8%
|
|
| 20 | 6 |
4.6%
|
|
| 24 | 1 |
0.8%
|
|
| 25 | 1 |
0.8%
|
|
| 30 | 5 |
3.8%
|
|
| 40 | 3 |
2.3%
|
|
| 50 | 5 |
3.8%
|
|
| 60 | 1 |
0.8%
|
|
| 70 | 1 |
0.8%
|
|
| 90 | 1 |
0.8%
|
|
| 95 | 1 |
0.8%
|
|
| 100 | 6 |
4.6%
|
|
| Sysmiss | 176 |