| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.8%
|
| -7 | Does not apply (spontaneous) | 2 |
1.5%
|
| 0 | Less than one day | 2 |
1.5%
|
| 1 | 14 |
10.5%
|
|
| 2 | 34 |
25.6%
|
|
| 3 | 19 |
14.3%
|
|
| 4 | 1 |
0.8%
|
|
| 5 | 15 |
11.3%
|
|
| 7 | 9 |
6.8%
|
|
| 8 | 2 |
1.5%
|
|
| 10 | 20 |
15%
|
|
| 12 | 2 |
1.5%
|
|
| 14 | 7 |
5.3%
|
|
| 15 | 2 |
1.5%
|
|
| 21 | 1 |
0.8%
|
|
| 60 | 1 |
0.8%
|
|
| 90 | 1 |
0.8%
|
|
| Sysmiss | 113 |