| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily or almost daily | 25 |
0.7%
|
| 2 | Weekly | 21 |
0.6%
|
| 3 | Monthly | 33 |
0.9%
|
| 4 | Less than monthly | 124 |
3.4%
|
| 5 | Never | 3396 |
94.4%
|
| Sysmiss | 1208 |