| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 100 |
7.1%
|
| 1 | Sometimes | 552 |
39.4%
|
| 2 | Often | 614 |
43.9%
|
| Sysmiss | 130 |
9.3%
|
|
| d | DK | 3 |
0.2%
|
| r | RF | 1 |
0.1%
|