| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily or almost daily | 2 |
0.8%
|
| 2 | Weekly | 1 |
0.4%
|
| 3 | Monthly | 1 |
0.4%
|
| 4 | Less than monthly | 10 |
3.9%
|
| 5 | Never | 232 |
89.6%
|
| 88 | 13 |
5%
|
|
| Sysmiss | 1640 |