| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Manual | 39 | 412 |
0.3%
|
| 2 | Special tools | 6 | 175 |
0.1%
|
| 3 | Both methods | 6 | 156 |
0.1%
|
| Sysmiss | 3254 | 124332 |