| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 69 |
27.5%
|
| -7 | Does not apply (spontaneous) | 5 |
2%
|
| 0 | Less than one day | 29 |
11.6%
|
| 1 | 35 |
13.9%
|
|
| 2 | 39 |
15.5%
|
|
| 3 | 27 |
10.8%
|
|
| 4 | 8 |
3.2%
|
|
| 5 | 8 |
3.2%
|
|
| 6 | 1 |
0.4%
|
|
| 7 | 17 |
6.8%
|
|
| 10 | 4 |
1.6%
|
|
| 14 | 2 |
0.8%
|
|
| 15 | 2 |
0.8%
|
|
| 21 | 1 |
0.4%
|
|
| 25 | 1 |
0.4%
|
|
| 30 | 1 |
0.4%
|
|
| 40 | 1 |
0.4%
|
|
| 60 | 1 |
0.4%
|
|
| Sysmiss | 1938 |