| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 5 |
3.8%
|
| -7 | Does not apply (spontaneous) | 1 |
0.8%
|
| 0 | Less than one day | 29 |
21.8%
|
| 1 | 7 |
5.3%
|
|
| 2 | 15 |
11.3%
|
|
| 3 | 7 |
5.3%
|
|
| 4 | 3 |
2.3%
|
|
| 5 | 7 |
5.3%
|
|
| 6 | 3 |
2.3%
|
|
| 7 | 16 |
12%
|
|
| 8 | 3 |
2.3%
|
|
| 9 | 3 |
2.3%
|
|
| 10 | 10 |
7.5%
|
|
| 11 | 1 |
0.8%
|
|
| 12 | 2 |
1.5%
|
|
| 13 | 1 |
0.8%
|
|
| 14 | 5 |
3.8%
|
|
| 15 | 2 |
1.5%
|
|
| 18 | 1 |
0.8%
|
|
| 20 | 4 |
3%
|
|
| 21 | 1 |
0.8%
|
|
| 30 | 6 |
4.5%
|
|
| 90 | 1 |
0.8%
|
|
| Sysmiss | 1592 |