| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Manual | 19 | 49 |
1.4%
|
| 2 | Special tools | 1 | 1 |
0%
|
| 3 | Both methods | 2 | 2 |
0.1%
|
| Sysmiss | 897 | 3500 |