| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 6 |
5.5%
|
| -7 | Does not apply (spontaneous) | 3 |
2.7%
|
| 1 | One day or less | 34 |
30.9%
|
| 2 | 36 |
32.7%
|
|
| 3 | 11 |
10%
|
|
| 4 | 2 |
1.8%
|
|
| 5 | 4 |
3.6%
|
|
| 7 | 1 |
0.9%
|
|
| 10 | 4 |
3.6%
|
|
| 14 | 3 |
2.7%
|
|
| 15 | 1 |
0.9%
|
|
| 30 | 4 |
3.6%
|
|
| 35 | 1 |
0.9%
|
|
| Sysmiss | 161 |