| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 27 |
0.6%
|
| 2 | Once a month | 22 |
0.5%
|
| 3 | 2-3 times a month | 55 |
1.3%
|
| 4 | Once a week | 23 |
0.5%
|
| 5 | 2-6 times a week | 58 |
1.3%
|
| 6 | Once a day | 1458 |
33.9%
|
| 7 | Twice or more a day | 2657 |
61.8%
|
| Sysmiss | 2 |