| Value | Category | Cases | |
|---|---|---|---|
| 2 | semanal | 1 |
1.2%
|
| 4 | mensual | 1 |
1.2%
|
| 5 | semestral | 27 |
33.3%
|
| 6 | anual | 52 |
64.2%
|
| Sysmiss | 664 |