| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 0 |
0%
|
| 2 | Weekly | 13 |
7.1%
|
| 3 | Monthly | 109 |
59.6%
|
| 9 | Other | 61 |
33.3%
|
| Sysmiss | 355 |