| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 15 |
8.2%
|
| 0 | 27 |
14.8%
|
|
| 1 | 20 |
10.9%
|
|
| 2 | 16 |
8.7%
|
|
| 3 | 7 |
3.8%
|
|
| 4 | 1 |
0.5%
|
|
| 5 | 31 |
16.9%
|
|
| 7 | 1 |
0.5%
|
|
| 8 | 5 |
2.7%
|
|
| 10 | 24 |
13.1%
|
|
| 15 | 5 |
2.7%
|
|
| 20 | 6 |
3.3%
|
|
| 25 | 3 |
1.6%
|
|
| 30 | 7 |
3.8%
|
|
| 50 | 3 |
1.6%
|
|
| 60 | 3 |
1.6%
|
|
| 85 | 1 |
0.5%
|
|
| 99 | 2 |
1.1%
|
|
| 100 | 6 |
3.3%
|
|
| Sysmiss | 162 |