| Value | Category | Cases | |
|---|---|---|---|
| -999 | Refused | 0 |
0%
|
| -888 | Don't know | 0 |
0%
|
| 1 | Yes, always | 629 |
92.4%
|
| 2 | Yes, sometimes | 51 |
7.5%
|
| 3 | Never | 1 |
0.1%
|
| Sysmiss | 122 |