| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 33 |
22.8%
|
| -7 | Does not apply (spontaneous) | 0 |
0%
|
| 0 | Less than one day | 41 |
28.3%
|
| 1 | 12 |
8.3%
|
|
| 2 | 28 |
19.3%
|
|
| 3 | 15 |
10.3%
|
|
| 4 | 1 |
0.7%
|
|
| 5 | 7 |
4.8%
|
|
| 7 | 6 |
4.1%
|
|
| 10 | 1 |
0.7%
|
|
| 90 | 1 |
0.7%
|
|
| Sysmiss | 206 |