| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 6 |
11.3%
|
| 0 | 17 |
32.1%
|
|
| 1 | 6 |
11.3%
|
|
| 2 | 3 |
5.7%
|
|
| 3 | 7 |
13.2%
|
|
| 4 | 1 |
1.9%
|
|
| 6 | 2 |
3.8%
|
|
| 8 | 1 |
1.9%
|
|
| 10 | 1 |
1.9%
|
|
| 11 | 1 |
1.9%
|
|
| 14 | 1 |
1.9%
|
|
| 22 | 1 |
1.9%
|
|
| 25 | 1 |
1.9%
|
|
| 28 | 1 |
1.9%
|
|
| 35 | 1 |
1.9%
|
|
| 40 | 1 |
1.9%
|
|
| 50 | 1 |
1.9%
|
|
| 54 | 1 |
1.9%
|
|
| Sysmiss | 162 |