| Value | Category | Cases | |
|---|---|---|---|
| 1 | Annually | 8 |
0.5%
|
| 2 | Bi-annually | 2 |
0.1%
|
| 3 | Fortnightly | 1 |
0.1%
|
| 4 | Monthly | 1623 |
98.1%
|
| 5 | Quarterly | 21 |
1.3%
|
| Missing value | 146 |