| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 3867 |
78.9%
|
| 1 | Often | 298 |
6.1%
|
| 2 | Sometimes | 615 |
12.5%
|
| 3 | Not at all | 111 |
2.3%
|
| 4 | Yes, widow/frequency missing | 12 |
0.2%
|
| 9 | 3 | ||
| Sysmiss | 3538 |