| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 888 |
71%
|
| 1 | Often | 51 |
4.1%
|
| 2 | Sometimes | 255 |
20.4%
|
| 3 | Not at all | 54 |
4.3%
|
| 4 | Yes, widow/frequency missing | 2 |
0.2%
|
| 9 | 1 | ||
| Sysmiss | 180 |