| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 5 |
9.6%
|
| -7 | Does not apply (spontaneous) | 1 |
1.9%
|
| 0 | Less than one day | 0 |
0%
|
| 1 | 2 |
3.8%
|
|
| 2 | 6 |
11.5%
|
|
| 3 | 5 |
9.6%
|
|
| 4 | 3 |
5.8%
|
|
| 5 | 8 |
15.4%
|
|
| 7 | 14 |
26.9%
|
|
| 10 | 2 |
3.8%
|
|
| 11 | 1 |
1.9%
|
|
| 14 | 2 |
3.8%
|
|
| 15 | 1 |
1.9%
|
|
| 30 | 1 |
1.9%
|
|
| 60 | 1 |
1.9%
|
|
| Sysmiss | 98 |