| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 18172 |
94.5%
|
| 1 | Often | 106 |
0.6%
|
| 2 | Sometimes | 715 |
3.7%
|
| 3 | Not at all | 173 |
0.9%
|
| 4 | Yes, widow/frequency missing | 60 |
0.3%
|
| 9 | Missing | 163 | |
| Sysmiss | 15207 |