| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 42 |
22.6%
|
| -7 | Does not apply (spontaneous) | 16 |
8.6%
|
| 0 | Less than one day | 34 |
18.3%
|
| 1 | 25 |
13.4%
|
|
| 2 | 16 |
8.6%
|
|
| 3 | 12 |
6.5%
|
|
| 4 | 7 |
3.8%
|
|
| 5 | 8 |
4.3%
|
|
| 6 | 1 |
0.5%
|
|
| 7 | 13 |
7%
|
|
| 10 | 3 |
1.6%
|
|
| 14 | 1 |
0.5%
|
|
| 20 | 2 |
1.1%
|
|
| 21 | 1 |
0.5%
|
|
| 25 | 1 |
0.5%
|
|
| 28 | 1 |
0.5%
|
|
| 49 | 1 |
0.5%
|
|
| 56 | 1 |
0.5%
|
|
| 70 | 1 |
0.5%
|
|
| Sysmiss | 414 |