| Value | Category | Cases | |
|---|---|---|---|
| 1 | Routine-manual | 183 |
26.6%
|
| 2 | Routine-mechanized | 101 |
14.7%
|
| 3 | Regular-manual | 110 |
16%
|
| 4 | Regular-mechanized | 126 |
18.3%
|
| 96 | Other (specify) | 168 |
24.4%
|
| Sysmiss | 859 |