| α1 | α2 | α3 | α4 | α5 | |
| α1 | - | 0.91 | 0.91 | 0.91 | 0.95 |
| α2 | 0.85 | - | 0.93 | 0.90 | 0.95 |
| α3 | 0.89 | 0.91 | - | 0.92 | 0.93 |
| α4 | 0.59 | 0.63 | 0.68 | - | 0.92 |
| α5 | 0.90 | 0.92 | 0.92 | 0.66 | - |