| Value | Category | Cases | |
|---|---|---|---|
| 1 | Once a day | 0 |
0%
|
| 2 | 2-3 times a day | 0 |
0%
|
| 3 | More than 4 times a day | 0 |
0%
|
| 4 | Once per week | 13 |
61.9%
|
| 5 | 2-4 times per week | 8 |
38.1%
|
| 6 | Never or less than once a month | 0 |
0%
|
| Sysmiss | 29 |