| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 21 |
2%
|
| 2 | Monthly | 316 |
30.2%
|
| 3 | Quarterly | 45 |
4.3%
|
| 4 | bi-annually | 28 |
2.7%
|
| 5 | annually | 69 |
6.6%
|
| 7 | never | 541 |
51.8%
|
| 96 | Others | 25 |
2.4%
|