| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 851 |
70.9%
|
| 1 | Only once | 53 |
4.4%
|
| 2 | A few times | 137 |
11.4%
|
| 3 | Often | 159 |
13.3%
|
| 9 | Don't know | 0 |
0%
|
| 98 | Refused | 0 |
0%
|