| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 33 |
22.3%
|
| -7 | Does not apply (spontaneous) | 0 |
0%
|
| 0 | Less than one day | 42 |
28.4%
|
| 1 | 13 |
8.8%
|
|
| 2 | 29 |
19.6%
|
|
| 3 | 15 |
10.1%
|
|
| 4 | 1 |
0.7%
|
|
| 5 | 7 |
4.7%
|
|
| 7 | 6 |
4.1%
|
|
| 10 | 1 |
0.7%
|
|
| 90 | 1 |
0.7%
|
|
| Sysmiss | 212 |