| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 26 |
12.9%
|
| -7 | Does not apply (spontaneous) | 23 |
11.4%
|
| 0 | Less than one day | 53 |
26.2%
|
| 1 | 34 |
16.8%
|
|
| 2 | 12 |
5.9%
|
|
| 3 | 8 |
4%
|
|
| 4 | 8 |
4%
|
|
| 5 | 10 |
5%
|
|
| 6 | 2 |
1%
|
|
| 7 | 10 |
5%
|
|
| 10 | 6 |
3%
|
|
| 12 | 1 |
0.5%
|
|
| 21 | 4 |
2%
|
|
| 30 | 1 |
0.5%
|
|
| 60 | 3 |
1.5%
|
|
| 90 | 1 |
0.5%
|
|
| Sysmiss | 398 |