| Value | Category | Cases | |
|---|---|---|---|
| 0 | Always | 488 |
13.7%
|
| 1 | Often | 48 |
1.3%
|
| 2 | Sometimes | 17 |
0.5%
|
| 3 | Rarely | 27 |
0.8%
|
| 4 | Never | 2968 |
83%
|
| 8 | Refused | 1 |
0%
|
| 9 | Missing | 25 |
0.7%
|
| Sysmiss | 45 |