| Value | Category | Cases | |
|---|---|---|---|
| 1 | weekly | 7 |
21.9%
|
| 2 | bi-weekly | 7 |
21.9%
|
| 3 | monthly | 2 |
6.3%
|
| 4 | annually | 2 |
6.3%
|
| 8 | don't know | 13 |
40.6%
|
| 9 | refused | 1 |
3.1%
|
| Sysmiss | 5228 |