| Value | Category | Cases | |
|---|---|---|---|
| 1 | higher r | 4 |
3.4%
|
| 2 | contam. | 44 |
37.6%
|
| 3 | contam. | 57 |
48.7%
|
| 4 | unqual. | 9 |
7.7%
|
| 5 | work in | 0 |
0%
|
| 6 | salt eva | 3 |
2.6%
|
| 7 | other | 0 |
0%
|
| 8 | do not i | 0 |
0%
|
| Sysmiss | 18 |