| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 18 |
13.1%
|
| 0 | 28 |
20.4%
|
|
| 1 | 52 |
38%
|
|
| 2 | 9 |
6.6%
|
|
| 3 | 10 |
7.3%
|
|
| 4 | 3 |
2.2%
|
|
| 5 | 6 |
4.4%
|
|
| 7 | 1 |
0.7%
|
|
| 8 | 1 |
0.7%
|
|
| 10 | 3 |
2.2%
|
|
| 11 | 1 |
0.7%
|
|
| 12 | 1 |
0.7%
|
|
| 18 | 1 |
0.7%
|
|
| 20 | 1 |
0.7%
|
|
| 25 | 1 |
0.7%
|
|
| 50 | 1 |
0.7%
|
|
| Sysmiss | 265 |