| Value | Category | Cases | |
|---|---|---|---|
| 0 | daily | 5 |
0.5%
|
| 1 | 5 or more days per week | 47 |
4.8%
|
| 2 | 1-4 days per week | 113 |
11.6%
|
| 3 | 1-3 days per month | 274 |
28.2%
|
| 4 | Less than once a month | 531 |
54.7%
|
| Sysmiss | 1349 |