| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily or almost daily | 0 |
0%
|
| 2 | Weekly | 1 |
0.2%
|
| 3 | Monthly | 3 |
0.6%
|
| 4 | Less than monthly | 23 |
4.5%
|
| 5 | Never | 480 |
94.7%
|
| Sysmiss | 2294 |