| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 16 |
0.2%
|
| 2 | Weekly | 3439 |
40.7%
|
| 3 | Monthly | 1293 |
15.3%
|
| 4 | Base on the volume of work | 3359 |
39.8%
|
| 5 | Others | 338 |
4%
|
| 9 | Not reported | 0 |
0%
|
| Sysmiss | 4 |