| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 2 |
0.1%
|
| 2 | Weekly | 3 |
0.1%
|
| 3 | Monthly | 2 |
0.1%
|
| 4 | More than monthly | 1 |
0%
|
| 5 | Never | 1269 |
51.8%
|
| 98 | Don’t know | 1171 |
47.8%
|
| Sysmiss | 647 |