| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 578 |
48.2%
|
| 1 | Just once or twice | 188 |
15.7%
|
| 2 | Several times | 206 |
17.2%
|
| 3 | Many times | 146 |
12.2%
|
| 4 | Always | 74 |
6.2%
|
| 8 | Refused | 1 |
0.1%
|
| 9 | Don't Know | 7 |
0.6%
|