| Value | Category | Cases | |
|---|---|---|---|
| 0 | Always | 8 |
0.6%
|
| 1 | Often | 4 |
0.3%
|
| 2 | Sometimes | 205 |
16.7%
|
| 3 | Rarely | 71 |
5.8%
|
| 4 | Never | 938 |
76.2%
|
| 8 | Refused | 0 |
0%
|
| 9 | Missing | 5 |
0.4%
|
| Sysmiss | 25 |