| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 5 |
5.4%
|
| -7 | Does not apply | 1 |
1.1%
|
| 1 | One day or less | 65 |
69.9%
|
| 2 | 12 |
12.9%
|
|
| 3 | 3 |
3.2%
|
|
| 4 | 1 |
1.1%
|
|
| 5 | 2 |
2.2%
|
|
| 7 | 2 |
2.2%
|
|
| 10 | 2 |
2.2%
|
|
| Sysmiss | 269 |