| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Manual | 62 | 1334 |
1.1%
|
| 2 | Special tools | 9 | 114 |
0.1%
|
| 3 | Both methods | 6 | 260 |
0.2%
|
| Sysmiss | 3228 | 123366 |