| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -7 | Does not apply (spontaneous) | 2 |
1.3%
|
| 0 | Less than one day | 33 |
20.9%
|
| 1 | 26 |
16.5%
|
|
| 2 | 28 |
17.7%
|
|
| 3 | 17 |
10.8%
|
|
| 4 | 9 |
5.7%
|
|
| 5 | 16 |
10.1%
|
|
| 6 | 2 |
1.3%
|
|
| 7 | 12 |
7.6%
|
|
| 10 | 3 |
1.9%
|
|
| 14 | 4 |
2.5%
|
|
| 21 | 3 |
1.9%
|
|
| 30 | 2 |
1.3%
|
|
| 50 | 1 |
0.6%
|
|
| Sysmiss | 451 |