| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 885 |
74.4%
|
| 1 | Once or twice | 151 |
12.7%
|
| 2 | A few times | 83 |
7%
|
| 3 | Often | 40 |
3.4%
|
| 9 | Don't know | 31 |
2.6%
|
| 998 | Refused | 0 |
0%
|