| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 1 |
0.6%
|
| 1 | Weekly | 4 |
2.2%
|
| 2 | Bi-Weekly | 1 |
0.6%
|
| 3 | Monthly | 110 |
61.5%
|
| 4 | Annually | 63 |
35.2%
|
| Sysmiss | 2970 |