| Value | Category | Cases | |
|---|---|---|---|
| -99 | DK | 1 |
0.1%
|
| -88 | Missing | 0 |
0%
|
| -77 | NA | 1 |
0.1%
|
| 1 | Once a day | 423 |
26.9%
|
| 2 | More than once a day | 361 |
22.9%
|
| 3 | Less than once a day | 733 |
46.6%
|
| 4 | Never | 49 |
3.1%
|
| 5 | 5 |
0.3%
|
|
| 6 | 1 |
0.1%
|
|
| Sysmiss | 1 |