The pie chart shows six different resources used to produce energy in 1985 and 2003. Overall, it is clear that most of the energy comes from primary oil, followed by nuclear power, natural gas, coal, nuclear power and other renewable energies. Over time, renewable energies have become somewhat use has declined, but still, primarily oil, coal and natural gas are used to produce the largest proportions of energy. it was done. In 1985, a large amount of oil was used to generate electricity at 52%, but by 2003 that number had dropped to 39%. Nuclear power, the second-largest resource in 1985, showed the sharpest (largest) decline in 2003 from 22% to just 8%. In contrast, natural gas rose by 10% and reached 23% in 2003, and coal almost tripled to 22%. Furthermore, In terms of cleaner energy sources, there was no change in hydropower, which represented 4% of total usage in both years while other renewable quadrupled(four times) from 1% in 1985 to 4% in 2003.