| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Manual | 533 | 2788 |
78.5%
|
| 2 | Special tools | 56 | 219 |
6.2%
|
| 3 | Both methods | 63 | 176 |
5%
|
| Sysmiss | 95 | 369 |