The two pie charts illustrate the proportion of energy production in Country in 1985 and 2003.
Overall,the percentage of coal and natural gas in generation electricity improved substantially but the reverse is true for the oil and nuclear energy production, and the other ones had no changes or small changes.
In 1985,the electricity generation number was the biggest in oil (more than 50%) and the othe production was different from each other.For example after oil was nuclear (with 20%) and natural gas (with 13%) and the other minor production.
However, by 2003, the proportions in the mix had changed considerably.Oil production was still major one, but it had decreased to 39% from 52%.By contrast , the percentage coal and natural gas rose noticeably to 22% and 23% which are almost the same.And the nuclear power declined sharply to 8%.And other 2 ones almost hasn’t changed.
