| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 5 |
2.6%
|
| 0 | Less than one day | 74 |
38.5%
|
| 1 | 30 |
15.6%
|
|
| 2 | 19 |
9.9%
|
|
| 3 | 15 |
7.8%
|
|
| 4 | 9 |
4.7%
|
|
| 5 | 12 |
6.3%
|
|
| 6 | 3 |
1.6%
|
|
| 7 | 12 |
6.3%
|
|
| 8 | 1 |
0.5%
|
|
| 10 | 2 |
1%
|
|
| 14 | 1 |
0.5%
|
|
| 20 | 4 |
2.1%
|
|
| 30 | 1 |
0.5%
|
|
| 35 | 1 |
0.5%
|
|
| 43 | 1 |
0.5%
|
|
| 60 | 1 |
0.5%
|
|
| 80 | 1 |
0.5%
|
|
| Sysmiss | 774 |