| Value | Category | Cases | |
|---|---|---|---|
| 1 | never | 400 |
87.7%
|
| 2 | once or twice in the past month | 14 |
3.1%
|
| 3 | about once a week | 1 |
0.2%
|
| 4 | 2 or 3 times a week | 2 |
0.4%
|
| 5 | almost every day | 17 |
3.7%
|
| 6 | every day | 22 |
4.8%
|
| 99 | n/a | 0 |
0%
|
| Sysmiss | 4999 |