| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 12 |
9.5%
|
| 0 | 37 |
29.4%
|
|
| 1 | 1 |
0.8%
|
|
| 2 | 1 |
0.8%
|
|
| 5 | 7 |
5.6%
|
|
| 10 | 7 |
5.6%
|
|
| 12 | 1 |
0.8%
|
|
| 15 | 12 |
9.5%
|
|
| 20 | 11 |
8.7%
|
|
| 22 | 1 |
0.8%
|
|
| 25 | 1 |
0.8%
|
|
| 30 | 25 |
19.8%
|
|
| 40 | 1 |
0.8%
|
|
| 45 | 5 |
4%
|
|
| 50 | 1 |
0.8%
|
|
| 59 | 3 |
2.4%
|
|
| Sysmiss | 474 |