| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 0 | Never | 342 |
28.5%
|
| 1 | Just once or twice | 136 |
11.3%
|
| 2 | Several times | 237 |
19.8%
|
| 3 | Many times | 325 |
27.1%
|
| 4 | Always | 157 |
13.1%
|
| 9 | Don't Know | 2 |
0.2%
|
| 998 | Refused | 0 |
0%
|