| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Manual | 62 | 1641 |
1.3%
|
| 2 | Special tools | 10 | 186 |
0.1%
|
| 3 | Both methods | 8 | 69 |
0.1%
|
| Sysmiss | 3225 | 123178 |