| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 20 |
7.5%
|
| -7 | Does not apply (spontaneous) | 6 |
2.2%
|
| 0 | Less than one day | 25 |
9.3%
|
| 1 | 31 |
11.6%
|
|
| 2 | 30 |
11.2%
|
|
| 3 | 41 |
15.3%
|
|
| 4 | 10 |
3.7%
|
|
| 5 | 8 |
3%
|
|
| 7 | 49 |
18.3%
|
|
| 10 | 8 |
3%
|
|
| 12 | 2 |
0.7%
|
|
| 13 | 1 |
0.4%
|
|
| 14 | 7 |
2.6%
|
|
| 15 | 4 |
1.5%
|
|
| 20 | 1 |
0.4%
|
|
| 21 | 4 |
1.5%
|
|
| 25 | 1 |
0.4%
|
|
| 30 | 4 |
1.5%
|
|
| 35 | 1 |
0.4%
|
|
| 40 | 1 |
0.4%
|
|
| 45 | 3 |
1.1%
|
|
| 50 | 1 |
0.4%
|
|
| 60 | 7 |
2.6%
|
|
| 80 | 1 |
0.4%
|
|
| 90 | 2 |
0.7%
|
|
| Sysmiss | 344 |