| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
3%
|
| -7 | Does not apply | 0 |
0%
|
| 1 | One day or less | 77 |
77%
|
| 2 | 9 |
9%
|
|
| 3 | 5 |
5%
|
|
| 4 | 2 |
2%
|
|
| 6 | 1 |
1%
|
|
| 7 | 2 |
2%
|
|
| 14 | 1 |
1%
|
|
| Sysmiss | 277 |