| Value | Category | Cases | |
|---|---|---|---|
| -95 | Refused | 0 |
0%
|
| 0 | Never | 2019 |
73.8%
|
| 1 | Once | 394 |
14.4%
|
| 2 | From time to time | 197 |
7.2%
|
| 3 | Often | 66 |
2.4%
|
| r | 59 |
2.2%
|