| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Does not apply (spontaneous) | 0 |
0%
|
| 0 | Less than one day | 0 |
0%
|
| 1 | 2 |
2.4%
|
|
| 2 | 5 |
6%
|
|
| 4 | 2 |
2.4%
|
|
| 5 | 36 |
43.4%
|
|
| 6 | 1 |
1.2%
|
|
| 7 | 3 |
3.6%
|
|
| 10 | 9 |
10.8%
|
|
| 15 | 25 |
30.1%
|
|
| Sysmiss | 436 |