| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Does not apply (spontaneous) | 1 |
5.6%
|
| 0 | Less than one day | 6 |
33.3%
|
| 3 | 1 |
5.6%
|
|
| 10 | 1 |
5.6%
|
|
| 15 | 2 |
11.1%
|
|
| 21 | 1 |
5.6%
|
|
| 24 | 1 |
5.6%
|
|
| 30 | 2 |
11.1%
|
|
| 34 | 1 |
5.6%
|
|
| 36 | 1 |
5.6%
|
|
| 67 | 1 |
5.6%
|
|
| Sysmiss | 384 |