| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily or almost daily | 13 |
0.4%
|
| 2 | Weekly | 37 |
1.1%
|
| 3 | Monthly | 45 |
1.4%
|
| 4 | Less than monthly | 286 |
8.7%
|
| 5 | Never | 2833 |
86.2%
|
| 77 | 53 |
1.6%
|
|
| 88 | 20 |
0.6%
|
|
| Sysmiss | 1122 |