| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not at all | 17755 |
53.4%
|
| 1 | Less than once a week | 3666 |
11%
|
| 2 | At least once a week | 4598 |
13.8%
|
| 3 | Almost every day | 7214 |
21.7%
|
| 9 | Missing | 152 | |
| Sysmiss | 1211 |