Rank | Variables | Contribution (%) |
1 | Gas Fuels (Ga) | 48.72 |
2 | Li ∩ Bu | 12.41 |
3 | Li2 | 11.79 |
4 | Bu2 | 7.78 |
5 | Gas Flares (Gf) | 6.66 |
6 | Li ∩ Gf | 5.06 |
7 | Li ∩ Bu | 4.71 |
8 | Liquid Fuels (Li) | 2.86 |