| Value | Category | Cases | |
|---|---|---|---|
| 1 | Several times a week | 1840 |
22.1%
|
| 2 | About once a week | 1900 |
22.8%
|
| 3 | About once a month | 948 |
11.4%
|
| 4 | Occassionally | 3644 |
43.7%
|
| 9 | Missing | 0 |
0%
|
| Sysmiss | 3283 |