| Value | Category | Cases | |
|---|---|---|---|
| 1 | Annual | 23 |
5.2%
|
| 2 | Per term | 371 |
83.9%
|
| 3 | Monthly | 3 |
0.7%
|
| 4 | When required | 44 |
10%
|
| 8 | Other (Specify) | 1 |
0.2%
|
| Sysmiss | 2398 |