| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 2 |
0.1%
|
| 1 | Often | 14 |
0.9%
|
| 2 | Sometimes | 54 |
3.5%
|
| 3 | Rarely | 103 |
6.7%
|
| 4 | Never | 1355 |
88.7%
|