| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily or almost daily | 8 |
0.8%
|
| 2 | Weekly | 7 |
0.7%
|
| 3 | Monthly | 12 |
1.3%
|
| 4 | Less than monthly | 47 |
4.9%
|
| 5 | Never | 880 |
92.2%
|
| Sysmiss | 1669 |