| Value | Category | Cases | |
|---|---|---|---|
| -95 | Refused | 0 |
0%
|
| 0 | Never | 2353 |
86%
|
| 1 | Once | 212 |
7.8%
|
| 2 | From time to time | 100 |
3.7%
|
| 3 | Often | 31 |
1.1%
|
| r | 39 |
1.4%
|