| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 7025 |
77.8%
|
| 1 | daily | 377 |
4.2%
|
| 2 | once a week | 353 |
3.9%
|
| 3 | several times a week | 243 |
2.7%
|
| 4 | several times a month | 128 |
1.4%
|
| 5 | occasional | 900 |
10%
|
| Sysmiss | 6050 |