| Value | Category | Cases | |
|---|---|---|---|
| 1 | Once or less per week | 48 |
64%
|
| 2 | 2 to 3 times per week | 21 |
28%
|
| 3 | Once per day | 1 |
1.3%
|
| 4 | Several times per day | 5 |
6.7%
|
| 6 | Refused | 0 |
0%
|
| Sysmiss | 866 |