| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily or almost daily | 4 |
1.1%
|
| 2 | Weekly | 19 |
5.2%
|
| 3 | Monthly | 32 |
8.7%
|
| 4 | Less than monthly | 75 |
20.4%
|
| 5 | Never | 238 |
64.7%
|
| Sysmiss | 186 |