| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 7 |
12.3%
|
| 2 | Biweekly | 9 |
15.8%
|
| 3 | Monthly | 36 |
63.2%
|
| 4 | Biannulay | 1 |
1.8%
|
| 5 | Annualy | 1 |
1.8%
|
| 6 | Never | 3 |
5.3%
|
| 7 | Others | 0 |
0%
|
| 9 | Not stated | 0 |
0%
|
| Sysmiss | 360 |