| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Manual | 2996 | 76470 |
93.5%
|
| 2 | Special tools | 128 | 2483 |
3%
|
| 3 | Both methods | 101 | 1929 |
2.4%
|
| Sysmiss | 64 | 915 |