| Value | Category | Cases | |
|---|---|---|---|
| 1 | Annually | 110 |
2.2%
|
| 2 | Bi-annually | 33 |
0.7%
|
| 3 | Fortnightly | 1 |
0%
|
| 4 | Monthly | 10 |
0.2%
|
| 5 | Quarterly | 23 |
0.5%
|
| Missing value | 4728 |
96.4%
|