| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
1.6%
|
| 0 | 57 |
46.7%
|
|
| 1 | 14 |
11.5%
|
|
| 2 | 23 |
18.9%
|
|
| 3 | 7 |
5.7%
|
|
| 5 | 5 |
4.1%
|
|
| 6 | 1 |
0.8%
|
|
| 7 | 3 |
2.5%
|
|
| 8 | 2 |
1.6%
|
|
| 10 | 1 |
0.8%
|
|
| 14 | 1 |
0.8%
|
|
| 15 | 1 |
0.8%
|
|
| 16 | 1 |
0.8%
|
|
| 18 | 2 |
1.6%
|
|
| 25 | 1 |
0.8%
|
|
| 30 | 1 |
0.8%
|
|
| Sysmiss | 241 |