| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 10 |
12.5%
|
| 5 | 2 |
2.5%
|
|
| 8 | 1 |
1.3%
|
|
| 10 | 3 |
3.8%
|
|
| 16 | 1 |
1.3%
|
|
| 20 | 13 |
16.3%
|
|
| 25 | 8 |
10%
|
|
| 26 | 1 |
1.3%
|
|
| 30 | 5 |
6.3%
|
|
| 35 | 1 |
1.3%
|
|
| 40 | 7 |
8.8%
|
|
| 50 | 7 |
8.8%
|
|
| 52 | 1 |
1.3%
|
|
| 60 | 1 |
1.3%
|
|
| 90 | 1 |
1.3%
|
|
| 100 | 18 |
22.5%
|
|
| Sysmiss | 918 |