| Value | Category | Cases | |
|---|---|---|---|
| -95 | Refused | 0 |
0%
|
| 0 | Never | 2003 |
73.2%
|
| 1 | Once | 462 |
16.9%
|
| 2 | From time to time | 173 |
6.3%
|
| 3 | Often | 54 |
2%
|
| r | 43 |
1.6%
|