| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 3 |
0.3%
|
| 2 | Sometimes | 828 |
95.5%
|
| 3 | Often | 26 |
3%
|
| 8 | 10 |
1.2%
|
|
| Sysmiss | 249 |