| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 15 | 1 |
2.8%
|
|
| 24 | 1 |
2.8%
|
|
| 30 | 1 |
2.8%
|
|
| 36 | 1 |
2.8%
|
|
| 40 | 14 |
38.9%
|
|
| 42 | 1 |
2.8%
|
|
| 45 | 1 |
2.8%
|
|
| 48 | 10 |
27.8%
|
|
| 50 | 1 |
2.8%
|
|
| 56 | 1 |
2.8%
|
|
| 70 | 2 |
5.6%
|
|
| 98 | 1 |
2.8%
|
|
| 168 | 1 |
2.8%
|
|
| Sysmiss | 84 |