| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not at all | 10187 |
74.6%
|
| 1 | Less than once a week | 2962 |
21.7%
|
| 2 | At least once a week | 513 |
3.8%
|
| 3 | Almost every day | 0 |
0%
|
| 9 | 9 | ||
| Sysmiss | 119 |