| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 27 |
55.1%
|
| 0 | Less than one day | 1 |
2%
|
| 2 | 2 |
4.1%
|
|
| 3 | 1 |
2%
|
|
| 4 | 1 |
2%
|
|
| 5 | 2 |
4.1%
|
|
| 6 | 1 |
2%
|
|
| 7 | 3 |
6.1%
|
|
| 8 | 1 |
2%
|
|
| 10 | 1 |
2%
|
|
| 12 | 2 |
4.1%
|
|
| 14 | 4 |
8.2%
|
|
| 15 | 1 |
2%
|
|
| 30 | 1 |
2%
|
|
| 45 | 1 |
2%
|
|
| Sysmiss | 549 |