| Value | Category | Cases | |
|---|---|---|---|
| 1 | Semanal? | 148 |
1.9%
|
| 2 | Mensual? | 445 |
5.6%
|
| 3 | Trimestral? | 954 |
12%
|
| 4 | Semestral? | 1659 |
20.8%
|
| 5 | Anual? | 4422 |
55.4%
|
| 6 | Otra? | 349 |
4.4%
|
| Sysmiss | 101733 |