| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 28 |
17.1%
|
| -7 | Does not apply | 14 |
8.5%
|
| 1 | One day or less | 41 |
25%
|
| 2 | 13 |
7.9%
|
|
| 3 | 13 |
7.9%
|
|
| 4 | 3 |
1.8%
|
|
| 5 | 12 |
7.3%
|
|
| 7 | 20 |
12.2%
|
|
| 10 | 10 |
6.1%
|
|
| 15 | 3 |
1.8%
|
|
| 20 | 2 |
1.2%
|
|
| 25 | 1 |
0.6%
|
|
| 30 | 2 |
1.2%
|
|
| 35 | 1 |
0.6%
|
|
| 60 | 1 |
0.6%
|
|
| Sysmiss | 608 |