| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 0 | Never | 702 |
58.5%
|
| 1 | Just once or twice | 91 |
7.6%
|
| 2 | Several times | 186 |
15.5%
|
| 3 | Many times | 122 |
10.2%
|
| 4 | Always | 96 |
8%
|
| 9 | Don’t know | 2 |
0.2%
|
| 98 | Refused | 0 |
0%
|