| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 16 |
21.3%
|
| 0 | Less than one day | 0 |
0%
|
| 1 | 1 |
1.3%
|
|
| 2 | 6 |
8%
|
|
| 3 | 4 |
5.3%
|
|
| 4 | 4 |
5.3%
|
|
| 5 | 10 |
13.3%
|
|
| 6 | 1 |
1.3%
|
|
| 7 | 11 |
14.7%
|
|
| 10 | 1 |
1.3%
|
|
| 14 | 4 |
5.3%
|
|
| 16 | 1 |
1.3%
|
|
| 27 | 2 |
2.7%
|
|
| 29 | 1 |
1.3%
|
|
| 30 | 7 |
9.3%
|
|
| 42 | 1 |
1.3%
|
|
| 45 | 2 |
2.7%
|
|
| 60 | 2 |
2.7%
|
|
| 90 | 1 |
1.3%
|
|
| Sysmiss | 927 |