| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 0 |
0%
|
| 2 | Bi-weekly | 0 |
0%
|
| 3 | Monthly | 2 |
3.5%
|
| 4 | Quarterly | 0 |
0%
|
| 5 | Annually | 52 |
91.2%
|
| 6 | Every two years | 0 |
0%
|
| 7 | At random | 3 |
5.3%
|
| Sysmiss | 949 |