| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 140 |
17.6%
|
| 2 | Weekly | 128 |
16.1%
|
| 3 | Monthly | 426 |
53.6%
|
| 4 | Other, specify | 101 |
12.7%
|
| Sysmiss | 2079 |