| Value | Category | Cases | |
|---|---|---|---|
| . | 3819 |
1.2%
|
|
| 1 | Regularly | 17946 |
5.5%
|
| 2 | Occasionally | 55799 |
17.2%
|
| 3 | Hardly ever | 43071 |
13.3%
|
| 4 | Never | 203601 |
62.8%
|
| ? | 8702 |