| Value | Category | Cases | |
|---|---|---|---|
| 1 | Annually | 18 |
1.3%
|
| 2 | Bi-annually | 31 |
2.3%
|
| 3 | Fortnightly | 16 |
1.2%
|
| 4 | Monthly | 274 |
20.3%
|
| 5 | Quarterly | 657 |
48.7%
|
| 6 | Weekly | 9 |
0.7%
|
| Missing value | 344 |
25.5%
|