Rank

Variables

Contribution (%)

1

Liquid Fuels (Li)

12.8

2

Solid Fuels (So)

11.3

3

Li ∩ So

10.8

4

So ∩ Gf

9.8

5

Ce ∩ Gf

8.6

6

Cement (Ce)

8.1

7

Gas Fuels (Ga)

7.1

8

So ∩ Ce

6.6

9

So ∩ Ga

6.5

10

Li ∩ Ga

6.3

11

Li ∩ Ce

5.8

12

Gas Flares (Gf)

3.8