| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | 187 |
96.9%
|
|
| 10 | 1 |
0.5%
|
|
| 15 | 1 |
0.5%
|
|
| 25 | 1 |
0.5%
|
|
| 40 | 1 |
0.5%
|
|
| 45 | 1 |
0.5%
|
|
| 80 | 1 |
0.5%
|
|
| Sysmiss | 49 |