| Value | Category | Cases | |
|---|---|---|---|
| 0 | Always | 4 |
0.1%
|
| 1 | Often | 1 |
0%
|
| 2 | Sometimes | 54 |
1.5%
|
| 3 | Rarely | 47 |
1.3%
|
| 4 | Never | 3450 |
96.5%
|
| 8 | Refused | 0 |
0%
|
| 9 | Missing | 18 |
0.5%
|
| Sysmiss | 45 |