| Value | Category | Cases | |
|---|---|---|---|
| 0 | Always | 3 |
0.2%
|
| 1 | Often | 134 |
10.9%
|
| 2 | Sometimes | 186 |
15.1%
|
| 3 | Rarely | 51 |
4.1%
|
| 4 | Never | 852 |
69.2%
|
| 8 | Refused | 0 |
0%
|
| 9 | Missing | 5 |
0.4%
|
| Sysmiss | 25 |