| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
1%
|
| 2 | 2 |
2%
|
|
| 3 | 9 |
8.8%
|
|
| 4 | 9 |
8.8%
|
|
| 5 | 15 |
14.7%
|
|
| 6 | 11 |
10.8%
|
|
| 7 | 16 |
15.7%
|
|
| 8 | 13 |
12.7%
|
|
| 9 | 4 |
3.9%
|
|
| 10 | 7 |
6.9%
|
|
| 12 | 2 |
2%
|
|
| 15 | 6 |
5.9%
|
|
| 19 | 1 |
1%
|
|
| 20 | 2 |
2%
|
|
| 24 | 1 |
1%
|
|
| 28 | 1 |
1%
|
|
| 30 | 1 |
1%
|
|
| 104 | 1 |
1%
|
|
| Sysmiss | 107 |