| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 1598 |
66.6%
|
| 1 | Just once or twice | 377 |
15.7%
|
| 2 | Several times | 254 |
10.6%
|
| 3 | Many times | 102 |
4.3%
|
| 4 | Always | 34 |
1.4%
|
| 9 | Don't know | 34 |
1.4%
|