| PCs | Eigenvalue | Variation% | Cumulative percentage (%) |
| PC1 | 3.16 | 7.9 | 7.9 |
| PC2 | 3.01 | 7.5 | 15.4 |
| PC3 | 2.8 | 7.1 | 22.6 |
| PC4 | 2.5 | 6.3 | 28.9 |
| PC5 | 2.4 | 6.2 | 35.1 |
| PC6 | 2.2 | 5.7 | 40.7 |
| PC7 | 2.2 | 5.5 | 46.2 |
| PC8 | 1.9 | 4.9 | 51.1 |
| PC9 | 1.9 | 4.9 | 56.0 |
| PC10 | 1.8 | 4.5 | 60.6 |
| PC11 | 1.6 | 4.2 | 64.8 |
| PC12 | 1.6 | 4.1 | 68.9 |
| PC13 | 1.4 | 3.7 | 72.5 |
| PC14 | 1.4 | 3.6 | 76.1 |
| PC15 | 1.3 | 3.3 | 79.4 |
| PC16 | 1.1 | 2.8 | 82.3 |
| PC17 | 0.98 | 2.5 | 84.7 |
| PC18 | 0.91 | 2.3 | 87.0 |
| PC19 | 0.90 | 2.3 | 89.3 |
| PC20 | 0.87 | 2.2 | 91.5 |
| PC21 | 0.79 | 2.0 | 93.5 |
| PC22 | 0.74 | 1.9 | 95.3 |
| PC23 | 0.66 | 1.7 | 97.0 |
| PC24 | 0.65 | 1.6 | 98.6 |
| PC25 | 0.544 | 1.4 | 100 |