| Value | Category | Cases | |
|---|---|---|---|
| 0 | 21 |
0.3%
|
|
| 1 | Several times a week | 1140 |
17.9%
|
| 2 | About once a week | 1401 |
22%
|
| 3 | About once a month | 897 |
14.1%
|
| 4 | Occassionally | 2922 |
45.8%
|
| Sysmiss | 5234 |