| Value | Category | Cases | |
|---|---|---|---|
| -2 | No answer | 6 |
0.5%
|
| -1 | Don't know | 23 |
1.8%
|
| 1 | Frequently | 80 |
6.4%
|
| 2 | Occasionally | 598 |
47.6%
|
| 3 | Never | 550 |
43.8%
|