| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 646 |
25.7%
|
| 2 | Once a month | 162 |
6.4%
|
| 3 | 2-3 times a month | 132 |
5.2%
|
| 4 | Once a week | 370 |
14.7%
|
| 5 | 2-6 times a week | 338 |
13.4%
|
| 6 | Once a day | 594 |
23.6%
|
| 7 | Twice or more a day | 273 |
10.9%
|
| Sysmiss | 18 |