| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 13 |
3.8%
|
| -7 | Does not apply (spontaneous) | 94 |
27.2%
|
| 0 | Less than one day | 40 |
11.6%
|
| 1 | 85 |
24.6%
|
|
| 2 | 34 |
9.9%
|
|
| 3 | 23 |
6.7%
|
|
| 4 | 12 |
3.5%
|
|
| 5 | 14 |
4.1%
|
|
| 6 | 3 |
0.9%
|
|
| 7 | 9 |
2.6%
|
|
| 8 | 2 |
0.6%
|
|
| 10 | 6 |
1.7%
|
|
| 12 | 1 |
0.3%
|
|
| 15 | 1 |
0.3%
|
|
| 16 | 1 |
0.3%
|
|
| 20 | 2 |
0.6%
|
|
| 25 | 1 |
0.3%
|
|
| 30 | 2 |
0.6%
|
|
| 45 | 1 |
0.3%
|
|
| 60 | 1 |
0.3%
|
|
| Sysmiss | 855 |