In the 'Index of Eight Core Industries', which one of the following is given the highest weight?

Electricity (10.32 percent), Steel (6.68 percent), Petroleum Refinery (5.94 percent), Crude Oil (5.22 percent), Coal (4.38 percent), Cement (2.41 percent), Natural Gas (1.71 percent), and Fertilizer make up the eight core industries (1.25 percent ).
These 8 sectors make up 37.90% of the Index of Industrial Production's weight (IIP).