| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 823 |
69.2%
|
| 1 | Just once or twice | 121 |
10.2%
|
| 2 | Several times | 104 |
8.7%
|
| 3 | Many times | 59 |
5%
|
| 4 | Always | 78 |
6.6%
|
| 9 | Don't know | 5 |
0.4%
|
| 998 | Refused | 0 |
0%
|