| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Never | 985 |
82.1%
|
| 2 | Once or twice | 115 |
9.6%
|
| 3 | A few times | 59 |
4.9%
|
| 4 | Often | 25 |
2.1%
|
| 8 | Refused | 6 |
0.5%
|
| 9 | Don’t know | 10 |
0.8%
|