| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 3 | 1 |
2.9%
|
|
| 5 | 2 |
5.9%
|
|
| 6 | 4 |
11.8%
|
|
| 8 | 1 |
2.9%
|
|
| 9 | 1 |
2.9%
|
|
| 10 | 6 |
17.6%
|
|
| 12 | 1 |
2.9%
|
|
| 15 | 3 |
8.8%
|
|
| 17 | 1 |
2.9%
|
|
| 18 | 1 |
2.9%
|
|
| 20 | 5 |
14.7%
|
|
| 25 | 2 |
5.9%
|
|
| 30 | 4 |
11.8%
|
|
| 50 | 1 |
2.9%
|
|
| 100 | 1 |
2.9%
|
|
| Sysmiss | 311 |