| Value | Category | Cases | |
|---|---|---|---|
| 1 | formal training required | 182 |
13.9%
|
| 2 | on the job training required | 221 |
16.9%
|
| 3 | both formal and on the job experience required | 92 |
7%
|
| 4 | none required | 812 |
62.1%
|
| Sysmiss | 214 |