| Value | Category | Cases | |
|---|---|---|---|
| 1 | daily | 4 |
0.1%
|
| 2 | less than daily | 10 |
0.2%
|
| 3 | not at all | 5180 |
97.8%
|
| 8 | don't know | 101 |
1.9%
|
| 9 | refused | 2 |
0%
|
| Sysmiss | 775 |