| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 0 |
0%
|
| -7 | Does not apply | 0 |
0%
|
| 1 | Less than one day | 3 |
11.5%
|
| 2 | 8 |
30.8%
|
|
| 3 | 6 |
23.1%
|
|
| 4 | 2 |
7.7%
|
|
| 5 | 2 |
7.7%
|
|
| 7 | 2 |
7.7%
|
|
| 10 | 1 |
3.8%
|
|
| 20 | 1 |
3.8%
|
|
| 30 | 1 |
3.8%
|
|
| Sysmiss | 456 |