| Value | Category | Cases | |
|---|---|---|---|
| 1 | daily | 3 |
8.8%
|
| 2 | weekly | 13 |
38.2%
|
| 3 | monthly | 8 |
23.5%
|
| 4 | every 2 months | 3 |
8.8%
|
| 5 | every 6 months | 2 |
5.9%
|
| 6 | once a year | 5 |
14.7%
|
| Sysmiss | 51274 |