| Value | Category | Cases | |
|---|---|---|---|
| 1 | Several times a day | 430 |
4.2%
|
| 2 | Once a day | 415 |
4.1%
|
| 3 | Several times a week | 461 |
4.5%
|
| 4 | Once a week | 304 |
3%
|
| 5 | Several times a month | 178 |
1.7%
|
| 6 | Once a month | 195 |
1.9%
|
| 7 | Once a year | 27 |
0.3%
|
| 8 | Several times a year | 56 |
0.5%
|
| 9 | Never | 2568 |
25.2%
|
| 10 | not applicable | 5564 |
54.6%
|
| Sysmiss | 12248 |