| Value | Category | Cases | |
|---|---|---|---|
| 1 | Annually | 60 |
5.3%
|
| 2 | Bi-annually | 16 |
1.4%
|
| 3 | Fortnightly | 6 |
0.5%
|
| 4 | Monthly | 70 |
6.2%
|
| 5 | Quarterly | 41 |
3.6%
|
| 6 | Weekly | 3 |
0.3%
|
| Missing value | 938 |
82.7%
|