| Value | Category | Cases | |
|---|---|---|---|
| -95 | Refused | 0 |
0%
|
| 0 | Never | 1926 |
70.4%
|
| 1 | Once | 376 |
13.7%
|
| 2 | From time to time | 251 |
9.2%
|
| 3 | Often | 115 |
4.2%
|
| r | 67 |
2.4%
|