| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 7 |
0.2%
|
| 2 | Once a month | 1 |
0%
|
| 3 | 2-3 times a month | 66 |
1.5%
|
| 4 | Once a week | 1 |
0%
|
| 5 | 2-6 times a week | 16 |
0.4%
|
| 6 | Once a day | 271 |
6.1%
|
| 7 | Twice or more a day | 4102 |
91.9%
|
| Sysmiss | 99 |