| Value | Category | Cases | |
|---|---|---|---|
| 1 | Annually | 129 |
66.8%
|
| 2 | Bi-annually | 5 |
2.6%
|
| 3 | Fortnightly | 5 |
2.6%
|
| 4 | Monthly | 45 |
23.3%
|
| 5 | Quarterly | 8 |
4.1%
|
| 6 | Weekly | 1 |
0.5%
|
| Missing value | 1608 |