| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 65 |
35.9%
|
| 0 | 18 |
9.9%
|
|
| 1 | 9 |
5%
|
|
| 2 | 5 |
2.8%
|
|
| 3 | 7 |
3.9%
|
|
| 4 | 1 |
0.6%
|
|
| 5 | 16 |
8.8%
|
|
| 6 | 1 |
0.6%
|
|
| 7 | 1 |
0.6%
|
|
| 10 | 13 |
7.2%
|
|
| 15 | 7 |
3.9%
|
|
| 20 | 5 |
2.8%
|
|
| 25 | 2 |
1.1%
|
|
| 30 | 7 |
3.9%
|
|
| 35 | 3 |
1.7%
|
|
| 40 | 1 |
0.6%
|
|
| 50 | 5 |
2.8%
|
|
| 70 | 1 |
0.6%
|
|
| 80 | 1 |
0.6%
|
|
| 90 | 1 |
0.6%
|
|
| 100 | 12 |
6.6%
|
|
| Sysmiss | 1058 |