| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Manual | 2462 | 77340 |
88.2%
|
| 2 | Special tools | 88 | 993 |
1.1%
|
| 3 | Both methods | 55 | 357 |
0.4%
|
| Sysmiss | 507 | 8990 |