| Value | Category | Cases | |
|---|---|---|---|
| 1 | Routine-manual | 132 |
34.9%
|
| 2 | Routine-mechanized | 30 |
7.9%
|
| 3 | Regular-manual | 74 |
19.6%
|
| 4 | Regular-mechanized | 50 |
13.2%
|
| 96 | Other (specify) | 92 |
24.3%
|
| Sysmiss | 377 |