| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 83 |
33.7%
|
| 0 | Less than one day | 15 |
6.1%
|
| 1 | 23 |
9.3%
|
|
| 2 | 37 |
15%
|
|
| 3 | 27 |
11%
|
|
| 4 | 6 |
2.4%
|
|
| 5 | 15 |
6.1%
|
|
| 7 | 17 |
6.9%
|
|
| 8 | 2 |
0.8%
|
|
| 10 | 5 |
2%
|
|
| 11 | 1 |
0.4%
|
|
| 14 | 3 |
1.2%
|
|
| 15 | 6 |
2.4%
|
|
| 21 | 1 |
0.4%
|
|
| 24 | 1 |
0.4%
|
|
| 25 | 1 |
0.4%
|
|
| 30 | 2 |
0.8%
|
|
| 40 | 1 |
0.4%
|
|
| Sysmiss | 1943 |