| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 14 |
15.6%
|
| 1 | 1 |
1.1%
|
|
| 2 | 1 |
1.1%
|
|
| 3 | 2 |
2.2%
|
|
| 4 | 1 |
1.1%
|
|
| 5 | 3 |
3.3%
|
|
| 7 | 7 |
7.8%
|
|
| 8 | 2 |
2.2%
|
|
| 10 | 16 |
17.8%
|
|
| 12 | 1 |
1.1%
|
|
| 14 | 1 |
1.1%
|
|
| 15 | 17 |
18.9%
|
|
| 20 | 13 |
14.4%
|
|
| 25 | 2 |
2.2%
|
|
| 30 | 6 |
6.7%
|
|
| 45 | 1 |
1.1%
|
|
| 60 | 2 |
2.2%
|
|
| Sysmiss | 412 |