| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 4 |
4.2%
|
| 2 | 1 |
1.1%
|
|
| 5 | 1 |
1.1%
|
|
| 7 | 1 |
1.1%
|
|
| 10 | 6 |
6.3%
|
|
| 15 | 2 |
2.1%
|
|
| 20 | 8 |
8.4%
|
|
| 25 | 5 |
5.3%
|
|
| 30 | 6 |
6.3%
|
|
| 38 | 1 |
1.1%
|
|
| 40 | 4 |
4.2%
|
|
| 50 | 8 |
8.4%
|
|
| 60 | 2 |
2.1%
|
|
| 61 | 1 |
1.1%
|
|
| 70 | 2 |
2.1%
|
|
| 80 | 2 |
2.1%
|
|
| 100 | 41 |
43.2%
|
|
| Sysmiss | 508 |