| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 15 |
28.8%
|
| 0 | 1 |
1.9%
|
|
| 1 | 2 |
3.8%
|
|
| 2 | 2 |
3.8%
|
|
| 3 | 1 |
1.9%
|
|
| 5 | 4 |
7.7%
|
|
| 7 | 1 |
1.9%
|
|
| 8 | 1 |
1.9%
|
|
| 10 | 11 |
21.2%
|
|
| 15 | 4 |
7.7%
|
|
| 16 | 1 |
1.9%
|
|
| 17 | 1 |
1.9%
|
|
| 18 | 1 |
1.9%
|
|
| 20 | 3 |
5.8%
|
|
| 30 | 1 |
1.9%
|
|
| 33 | 1 |
1.9%
|
|
| 35 | 1 |
1.9%
|
|
| 90 | 1 |
1.9%
|
|
| Sysmiss | 98 |