| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
3.5%
|
| -7 | Does not apply | 30 |
35.3%
|
| 1 | One day or less | 28 |
32.9%
|
| 2 | 9 |
10.6%
|
|
| 3 | 5 |
5.9%
|
|
| 4 | 2 |
2.4%
|
|
| 5 | 3 |
3.5%
|
|
| 10 | 2 |
2.4%
|
|
| 18 | 1 |
1.2%
|
|
| 45 | 1 |
1.2%
|
|
| 50 | 1 |
1.2%
|
|
| Sysmiss | 274 |