| Value | Category | Cases | |
|---|---|---|---|
| 1 | No skills required | 141 |
10.6%
|
| 2 | Basic Skills required | 218 |
16.3%
|
| 3 | Intermediate skills required | 448 |
33.5%
|
| 4 | Advanced skills required | 529 |
39.6%
|