The provided pie charts compare the proportions of five types of electricity production: coal, oil, natural gas, hydro, and nuclear power by five different sources in France in 1990 and 2010.
From the overall perspective, it is obvious seen that the ratios of all electricity productions were lower in 2010 in comparison with that in 1990, while the portion of nuclear power had a noticeable rise.
According to the pie charts, coal and natural gas both dominated, each at 28%, followed by oil, at 22%. However, in 2010, there was a considerable reduction in the percentages of coal and oil, both at 13%, while natural gas recorded 4%.
When it comes to the nuclear and hydro powers, the ratio of nuclear energy was at 17% in 1990, whereas, in 2010, nuclear had the highest pattern, with 67%. In terms of the portion of hydroelectricity, it was the least prominent in the former and latter year, having 6% and 4%, respectively.