| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1193 |
49.7%
|
| 1 | Just once or twice | 304 |
12.7%
|
| 2 | Several times | 399 |
16.6%
|
| 3 | Many times | 300 |
12.5%
|
| 4 | Always | 202 |
8.4%
|
| 8 | Refused | 2 |
0.1%
|
| 9 | Don't know | 0 |
0%
|