| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 6 |
3.9%
|
| -7 | Does not apply (spontaneous) | 61 |
40.1%
|
| 0 | Less than one day | 32 |
21.1%
|
| 1 | 12 |
7.9%
|
|
| 2 | 10 |
6.6%
|
|
| 3 | 7 |
4.6%
|
|
| 4 | 6 |
3.9%
|
|
| 5 | 2 |
1.3%
|
|
| 7 | 6 |
3.9%
|
|
| 10 | 4 |
2.6%
|
|
| 14 | 2 |
1.3%
|
|
| 15 | 1 |
0.7%
|
|
| 30 | 2 |
1.3%
|
|
| 35 | 1 |
0.7%
|
|
| Sysmiss | 168 |