| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 4094 |
83.5%
|
| 1 | Often | 206 |
4.2%
|
| 2 | Sometimes | 497 |
10.1%
|
| 3 | Not at all | 101 |
2.1%
|
| 4 | Yes, widow/frequency missing | 5 |
0.1%
|
| 9 | 3 | ||
| Sysmiss | 3538 |