| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 2098 |
88.8%
|
| 1 | Only once | 115 |
4.9%
|
| 2 | A few times | 111 |
4.7%
|
| 3 | Often | 35 |
1.5%
|
| 9 | Don't know | 4 |
0.2%
|
| 998 | Refused | 0 |
0%
|