| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
12.5%
|
| 0 | Less than one day | 1 |
4.2%
|
| 2 | 4 |
16.7%
|
|
| 3 | 1 |
4.2%
|
|
| 4 | 2 |
8.3%
|
|
| 5 | 5 |
20.8%
|
|
| 6 | 1 |
4.2%
|
|
| 7 | 4 |
16.7%
|
|
| 14 | 1 |
4.2%
|
|
| 30 | 1 |
4.2%
|
|
| 70 | 1 |
4.2%
|
|
| Sysmiss | 126 |