| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 4 |
3.8%
|
| 3 | 1 |
1%
|
|
| 5 | 1 |
1%
|
|
| 9 | 1 |
1%
|
|
| 10 | 5 |
4.8%
|
|
| 15 | 1 |
1%
|
|
| 20 | 5 |
4.8%
|
|
| 25 | 4 |
3.8%
|
|
| 30 | 8 |
7.6%
|
|
| 40 | 1 |
1%
|
|
| 49 | 1 |
1%
|
|
| 50 | 1 |
1%
|
|
| 51 | 1 |
1%
|
|
| 55 | 1 |
1%
|
|
| 60 | 2 |
1.9%
|
|
| 65 | 1 |
1%
|
|
| 71 | 1 |
1%
|
|
| 75 | 2 |
1.9%
|
|
| 100 | 64 |
61%
|
|
| Sysmiss | 259 |