| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 1552 |
64.7%
|
| 1 | Just once or twice | 356 |
14.8%
|
| 2 | Several times | 279 |
11.6%
|
| 3 | Many times | 136 |
5.7%
|
| 4 | Always | 74 |
3.1%
|
| 9 | Don't know | 2 |
0.1%
|