| Value | Category | Cases | |
|---|---|---|---|
| -99 | Refused to respond | 1 |
0.1%
|
| -98 | Don't know | 2 |
0.2%
|
| 1 | Never | 241 |
25.5%
|
| 2 | Rarely (1-2 times) | 390 |
41.3%
|
| 3 | Sometimes (3-10 times) | 294 |
31.1%
|
| 4 | Often (more than 10 times) | 16 |
1.7%
|
| Sysmiss | 1 |