| Value | Category | Cases | |
|---|---|---|---|
| -5 | Missing; Unknown; Inappropiate | 0 |
0%
|
| -4 | Not asked | 0 |
0%
|
| -3 | Not applicable | 0 |
0%
|
| -2 | No answer | 0 |
0%
|
| -1 | Don´t know | 0 |
0%
|
| 1 | Upper | 187 |
18.5%
|
| 2 | Middle | 292 |
28.9%
|
| 3 | Skilled | 104 |
10.3%
|
| 4 | Unskill | 428 |
42.3%
|