| Value | Category | Cases | |
|---|---|---|---|
| 1 | Hourly | 60 |
4.4%
|
| 2 | Daily | 359 |
26.1%
|
| 3 | Weekly | 95 |
6.9%
|
| 4 | Monthly | 761 |
55.3%
|
| 5 | Once off | 46 |
3.3%
|
| 6 | Others | 23 |
1.7%
|
| 7 | Unknown | 31 |
2.3%
|
| Sysmiss | 3169 |