| Value | Category | Cases | |
|---|---|---|---|
| 1 | Annually | 201 |
14.9%
|
| 2 | Bi-annually | 50 |
3.7%
|
| 3 | Fortnightly | 4 |
0.3%
|
| 4 | Monthly | 17 |
1.3%
|
| 5 | Quarterly | 31 |
2.3%
|
| 6 | Weekly | 4 |
0.3%
|
| Missing value | 1042 |
77.2%
|