| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 1197 |
95.8%
|
| 1 | Often | 15 |
1.2%
|
| 2 | Sometimes | 36 |
2.9%
|
| 3 | Not at all | 1 |
0.1%
|
| 4 | Yes, widow/frequency missing | 1 |
0.1%
|
| 9 | 1 | ||
| Sysmiss | 180 |