| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 10 |
18.5%
|
| 0 | Less than one day | 4 |
7.4%
|
| 1 | 2 |
3.7%
|
|
| 2 | 1 |
1.9%
|
|
| 3 | 5 |
9.3%
|
|
| 4 | 1 |
1.9%
|
|
| 5 | 1 |
1.9%
|
|
| 6 | 2 |
3.7%
|
|
| 7 | 7 |
13%
|
|
| 10 | 1 |
1.9%
|
|
| 14 | 12 |
22.2%
|
|
| 21 | 2 |
3.7%
|
|
| 25 | 1 |
1.9%
|
|
| 30 | 5 |
9.3%
|
|
| Sysmiss | 2901 |