| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 694 |
1.6%
|
| 2 | Several times a week | 3010 |
6.9%
|
| 3 | Once a week | 2694 |
6.1%
|
| 4 | Once a month | 2549 |
5.8%
|
| 5 | Rarely | 13266 |
30.3%
|
| 6 | Never | 21617 |
49.3%
|
| Sysmiss | 150983 |