| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Manual | 8 | 17 |
0.5%
|
| 2 | Special tools | 1 | 4 |
0.1%
|
| 3 | Both methods | 2 | 2 |
0.1%
|
| Sysmiss | 736 | 3529 |