The pie charts illustrate the changes in the percentage of energy generated using different resources in Germany in 1985 and 2003. Overall, natural gas, coal, and others experienced upward trends in their contributions to the total energy in Germany over the period, with the exception of oil and nuclear. It is also clear that hydro remained unchanged.
In 1985, oil was the most significant energy source in Germany, accounting for half of the total energy, followed by nuclear and natural gas, at 22% and 13%, respectively. Coal and hydro were the least utilized sources, making up 8% and 4% of the total energy. Other renewable sources were responsible for the remaining only 1%.
By 2003, noticeable changes had occurred. Although oil saw a slight decline, it remained the main energy source. There were reverse trends in the proportion of energy generated using nuclear and natural gas: the former saw a decrease of 14%, while the latter grew by 10%. The figures for coal and other renewable sources experienced a dramatic rise, reaching 22% and 4%, respectively, while hydro stayed the same.