| Value | Category | Cases | |
|---|---|---|---|
| 1 | Annually | 31 |
2.3%
|
| 2 | Bi-annually | 7 |
0.5%
|
| 3 | Fortnightly | 6 |
0.4%
|
| 4 | Monthly | 52 |
3.9%
|
| 5 | Quarterly | 24 |
1.8%
|
| 6 | Weekly | 10 |
0.7%
|
| Missing value | 1219 |
90.4%
|