| Value | Category | Cases | |
|---|---|---|---|
| 0 | Always | 26 |
0.7%
|
| 1 | Often | 14 |
0.4%
|
| 2 | Sometimes | 352 |
9.8%
|
| 3 | Rarely | 93 |
2.6%
|
| 4 | Never | 3073 |
86%
|
| 8 | Refused | 1 |
0%
|
| 9 | Missing | 15 |
0.4%
|
| Sysmiss | 45 |