| Value | Category | Cases | |
|---|---|---|---|
| 1 | yearly | 247 |
29.1%
|
| 2 | per semester | 27 |
3.2%
|
| 3 | every four months | 5 |
0.6%
|
| 4 | every three | 50 |
5.9%
|
| 5 | every two | 0 |
0%
|
| 6 | per month | 29 |
3.4%
|
| 7 | every forthnightly | 0 |
0%
|
| 8 | weekly | 1 |
0.1%
|
| 9 | daily | 8 |
0.9%
|
| 10 | per term | 465 |
54.8%
|
| 11 | other | 17 |
2%
|
| Sysmiss | 754 |