| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
1%
|
| -7 | Does not apply (spontaneous) | 6 |
3%
|
| 0 | Less than one day | 83 |
42.1%
|
| 1 | 33 |
16.8%
|
|
| 2 | 22 |
11.2%
|
|
| 3 | 10 |
5.1%
|
|
| 4 | 8 |
4.1%
|
|
| 5 | 11 |
5.6%
|
|
| 6 | 1 |
0.5%
|
|
| 7 | 11 |
5.6%
|
|
| 10 | 1 |
0.5%
|
|
| 14 | 2 |
1%
|
|
| 20 | 3 |
1.5%
|
|
| 30 | 1 |
0.5%
|
|
| 35 | 1 |
0.5%
|
|
| 60 | 1 |
0.5%
|
|
| 75 | 1 |
0.5%
|
|
| Sysmiss | 750 |