| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1288 |
53.7%
|
| 1 | Just once or twice | 494 |
20.6%
|
| 2 | Several times | 284 |
11.8%
|
| 3 | Many times | 221 |
9.2%
|
| 4 | Always | 112 |
4.7%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't Know | 1 |
0%
|