| Operation | Number of image samples | |
|---|---|---|
| Site1 | Worker1 | 432 |
| Worker2 | 323 | |
| Worker3 | 281 | |
| Worker4 | 298 | |
| Site2 | Worker5 | 268 |
| Worker6 | 270 | |
| Worker7 | 241 | |
| Site3 | Worker8 | 198 |
| Worker9 | 158 | |
| Worker10 | 474 | |
| Worker11 | 343 | |
| Site4 | Worker12 | 218 |
| Worker13 | 158 | |
| Worker14 | 155 | |
| Site5 | Worker15 | 147 |
| Worker16 | 204 | |
| Worker17 | 210 | |