| Value | Category | Cases | |
|---|---|---|---|
| 1 | never | 1986 |
15.9%
|
| 2 | once or twice in the past month | 1151 |
9.2%
|
| 3 | about once a week | 1109 |
8.9%
|
| 4 | 2 or 3 times a week | 1069 |
8.6%
|
| 5 | almost every day | 3417 |
27.4%
|
| 6 | every day | 3757 |
30.1%
|
| 99 | n/a | 1 |
0%
|
| Sysmiss | 9806 |