| Value | Category | Cases | |
|---|---|---|---|
| 1 | Annually | 9 |
0.7%
|
| 2 | Bi-annually | 6 |
0.4%
|
| 3 | Fortnightly | 48 |
3.6%
|
| 4 | Monthly | 250 |
18.5%
|
| 5 | Quarterly | 33 |
2.4%
|
| 6 | Weekly | 37 |
2.7%
|
| Missing value | 966 |
71.6%
|