| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not filled | 7171 |
94.9%
|
| 1 | Hourly | 16 |
0.2%
|
| 2 | Daily | 38 |
0.5%
|
| 3 | Weekly | 13 |
0.2%
|
| 4 | Fort nightly | 14 |
0.2%
|
| 5 | Monthly | 305 |
4%
|
| Sysmiss | 26974 |