| Value | Category | Cases | |
|---|---|---|---|
| 1 | fixed | 8292 |
80.7%
|
| 2 | by piece | 1786 |
17.4%
|
| 3 | fixed + piece | 193 |
1.9%
|
| 4 | other | 8 |
0.1%
|
| Sysmiss | 38907 |