| Component | ||
| B1 | B2 | B3 |
PCB 28 | 0.689 | 0.363 | −0.234 |
PCB 52 | 0.651 | −0.408 | 0.037 |
PCB 101 | 0.239 | 0.597 | 0.434 |
PCB 118 | −0.065 | −0.711 | 0.079 |
PCB 138 | 0.821 | 0.023 | −0.242 |
PCB 153 | −0.43 | 0.451 | −0.529 |
PCB 180 | 0.011 | 0.163 | 0.866 |