| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 17 |
11.7%
|
| -7 | Does not apply | 40 |
27.6%
|
| 1 | One day or less | 34 |
23.4%
|
| 2 | 20 |
13.8%
|
|
| 3 | 4 |
2.8%
|
|
| 4 | 1 |
0.7%
|
|
| 5 | 6 |
4.1%
|
|
| 7 | 4 |
2.8%
|
|
| 9 | 1 |
0.7%
|
|
| 10 | 3 |
2.1%
|
|
| 15 | 2 |
1.4%
|
|
| 20 | 1 |
0.7%
|
|
| 21 | 4 |
2.8%
|
|
| 30 | 5 |
3.4%
|
|
| 35 | 1 |
0.7%
|
|
| 40 | 1 |
0.7%
|
|
| 50 | 1 |
0.7%
|
|
| Sysmiss | 264 |