| Value | Category | Cases | |
|---|---|---|---|
| 1 | weekly | 7 |
25%
|
| 2 | bi-weekly | 6 |
21.4%
|
| 3 | monthly | 2 |
7.1%
|
| 4 | annually | 3 |
10.7%
|
| 8 | don't know | 7 |
25%
|
| 9 | refused | 3 |
10.7%
|
| Sysmiss | 5051 |