| Value | Category | Cases | |
|---|---|---|---|
| -999 | Don't know | 92 |
2%
|
| -888 | No response | 54 |
1.2%
|
| 1 | Many times | 612 |
13.2%
|
| 2 | 1-2 times | 1953 |
42.2%
|
| 3 | Never | 1918 |
41.4%
|
| Sysmiss | 6 |