| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 68 |
63.6%
|
| -7 | Does not apply (spontaneous) | 6 |
5.6%
|
| 1 | One day or less | 1 |
0.9%
|
| 2 | 1 |
0.9%
|
|
| 3 | 4 |
3.7%
|
|
| 5 | 1 |
0.9%
|
|
| 7 | 1 |
0.9%
|
|
| 10 | 4 |
3.7%
|
|
| 12 | 1 |
0.9%
|
|
| 14 | 4 |
3.7%
|
|
| 15 | 5 |
4.7%
|
|
| 18 | 1 |
0.9%
|
|
| 20 | 1 |
0.9%
|
|
| 21 | 1 |
0.9%
|
|
| 22 | 1 |
0.9%
|
|
| 30 | 5 |
4.7%
|
|
| 60 | 1 |
0.9%
|
|
| 90 | 1 |
0.9%
|
|
| Sysmiss | 42 |