| Value | Category | Cases | |
|---|---|---|---|
| 1 | Hourly | 4 |
2.4%
|
| 2 | Daily | 40 |
23.5%
|
| 3 | Weekly | 9 |
5.3%
|
| 4 | Monthly | 103 |
60.6%
|
| 5 | Once off | 6 |
3.5%
|
| 6 | Others | 3 |
1.8%
|
| 7 | Unknown | 5 |
2.9%
|
| Sysmiss | 4374 |