| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| 1 | Weekly | 0 |
0%
|
| 2 | Bi-Weekly | 0 |
0%
|
| 3 | Monthly | 9 |
29%
|
| 4 | Annually | 22 |
71%
|
| Sysmiss | 3292 |