| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 4001 |
81.6%
|
| 1 | Often | 182 |
3.7%
|
| 2 | Sometimes | 549 |
11.2%
|
| 3 | Not at all | 165 |
3.4%
|
| 4 | Yes, widow/frequency missing | 4 |
0.1%
|
| 9 | 5 | ||
| Sysmiss | 3538 |