| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | 19 |
21.1%
|
|
| 1 | 8 |
8.9%
|
|
| 2 | 20 |
22.2%
|
|
| 3 | 7 |
7.8%
|
|
| 4 | 4 |
4.4%
|
|
| 5 | 6 |
6.7%
|
|
| 6 | 3 |
3.3%
|
|
| 7 | 2 |
2.2%
|
|
| 8 | 10 |
11.1%
|
|
| 9 | 1 |
1.1%
|
|
| 12 | 6 |
6.7%
|
|
| 20 | 1 |
1.1%
|
|
| 24 | 3 |
3.3%
|
|
| Sysmiss | 60 |