| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily or almost daily | 30 |
1.4%
|
| 2 | Weekly | 26 |
1.2%
|
| 3 | Monthly | 12 |
0.5%
|
| 4 | Less than monthly | 36 |
1.6%
|
| 5 | Never | 2089 |
95.3%
|
| Sysmiss | 771 |