| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 7 |
6.1%
|
| 2 | Biweekly | 20 |
17.4%
|
| 3 | Monthly | 71 |
61.7%
|
| 4 | Biannulay | 4 |
3.5%
|
| 5 | Annualy | 5 |
4.3%
|
| 6 | Never | 7 |
6.1%
|
| 7 | Others | 1 |
0.9%
|
| 9 | Not stated | 0 |
0%
|
| Sysmiss | 1129 |