| Value | Category | Cases | |
|---|---|---|---|
| 1 | Routine-manual | 132 |
28.1%
|
| 2 | Routine-mechanized | 75 |
16%
|
| 3 | Regular-manual | 78 |
16.6%
|
| 4 | Regular-mechanized | 83 |
17.7%
|
| 96 | Other (specify) | 102 |
21.7%
|
| Sysmiss | 950 |