| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 75 |
61.5%
|
| 2 | 1 |
0.8%
|
|
| 5 | 1 |
0.8%
|
|
| 6 | 1 |
0.8%
|
|
| 7 | 1 |
0.8%
|
|
| 8 | 2 |
1.6%
|
|
| 10 | 4 |
3.3%
|
|
| 15 | 4 |
3.3%
|
|
| 18 | 1 |
0.8%
|
|
| 20 | 6 |
4.9%
|
|
| 25 | 5 |
4.1%
|
|
| 27 | 1 |
0.8%
|
|
| 30 | 6 |
4.9%
|
|
| 40 | 1 |
0.8%
|
|
| 50 | 6 |
4.9%
|
|
| 60 | 4 |
3.3%
|
|
| 80 | 2 |
1.6%
|
|
| 90 | 1 |
0.8%
|
|
| Sysmiss | 238 |