The pie charts highlight data about the proportion of total energy consumption from 5 different sources (Gas, Renewable energy, Oil, Natural gas and Nuclear) in 1985, 1995 and 2005.
Overall, what stands out from the chart is that oil and nuclear energy accounted for the largest proportions of energy consumption, while gas and natural gas represented smaller shares in all three years.
Looking at the details the figures in 1985, the main source of energy was nuclear, at 31%, followed by renewable energy with 27%. Oil accounted for one quarter of the total energy consumed. The proportion of Natural gas was almost the same as the proportion of Gas, with 8% and 9% respectively. This means that Gas had the lowest figure in 1985.
With respect to the figures in 1995, the main source of energy was Oil with 30%. Nuclear energy accounted for a quarter of all energy which was consumed, making it the second energy source. The figure for Renewable energy recorded 24%, which was almost two times higher than the proportion of Gas with 11%. The lowest proportion was recorded for natural gas, at 10%, which was less than one third the figure for oil.
As regards the figures in 2005,the main sources of energy were nuclear and oil, both accounting for 25%. Renewable energy accounted for 18%, which means that Renewable energy declined from 27% in 1985 to 24% in 1995 and then to 18% in 2005. In contrast, the proportions of gas and natural gas increased from 9% and 8%, respectively, in 1985 to 14% and 11%, respectively, in 2005.