| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily or almost daily | 2 |
0.1%
|
| 2 | Weekly | 8 |
0.2%
|
| 3 | Monthly | 88 |
2.5%
|
| 4 | Less than monthly | 324 |
9.2%
|
| 5 | Never | 3092 |
88%
|
| Sysmiss | 2499 |