| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 9 |
12.2%
|
| 0 | 31 |
41.9%
|
|
| 1 | 5 |
6.8%
|
|
| 2 | 4 |
5.4%
|
|
| 3 | 5 |
6.8%
|
|
| 4 | 5 |
6.8%
|
|
| 5 | 2 |
2.7%
|
|
| 6 | 2 |
2.7%
|
|
| 7 | 1 |
1.4%
|
|
| 10 | 3 |
4.1%
|
|
| 15 | 1 |
1.4%
|
|
| 18 | 1 |
1.4%
|
|
| 20 | 1 |
1.4%
|
|
| 25 | 1 |
1.4%
|
|
| 45 | 1 |
1.4%
|
|
| 90 | 1 |
1.4%
|
|
| 130 | 1 |
1.4%
|
|
| Sysmiss | 286 |