| Value | Category | Cases | |
|---|---|---|---|
| -1 | Don't know | 1 |
0.1%
|
| 1 | Often | 21 |
1.4%
|
| 2 | Sometimes | 102 |
6.7%
|
| 3 | Rarely | 201 |
13.2%
|
| 4 | Never | 1203 |
78.7%
|