| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 |
0.4%
|
|
| 1 | Never | 194 |
78.9%
|
| 2 | Once or twice | 26 |
10.6%
|
| 3 | A few times | 4 |
1.6%
|
| 4 | Often | 9 |
3.7%
|
| 5 | Do not know | 12 |
4.9%
|
| Sysmiss | 13035 |