| C1 | C2 | C3 | C4 |
C1 | 1.1 | 2.3 | 2.1 | 2.5 |
C2 | 0.5 | 1 | 2.3 | 0.5 |
C3 | 0.5 | 0.5 | 1 | 0.5 |
C4 | 0.5 | 2 | 2.1 | 1.7 |
Total | 2.6 | 5.8 | 7.5 | 5.2 |