| Value | Category | Cases | |
|---|---|---|---|
| 1 | Annually | 13 |
25%
|
| 2 | EverySixMos | 8 |
15.4%
|
| 3 | Monthly | 13 |
25%
|
| 4 | Quarterly | 18 |
34.6%
|
| Missing value | 2156 |