| Value | Category | Cases | |
|---|---|---|---|
| -99 | Inconsistent | 34 |
18%
|
| -5 | Not available | 1 |
0.5%
|
| 1 | March | 146 |
77.2%
|
| 96 | Other | 8 |
4.2%
|
| Sysmiss | 11 |