The given pie charts provide different energy percentages taken from variety of resources in one particular country from 1985 to 2003.
Overall, energy from oil stood out with its highest proportion in both years, whereas other renewable energies witnessed opposite trend despite a slight increase. It is also clear that the percentage of nuclear energy declined gradually, while natural gas and coal energy experienced a significant rise throughout the given period. As for hydro energy, it remained stable with no changes at all.
To be specific, oil energy attracted attention since it occupied the half of chart with 52% in 1985, however, it declined steadily to 39% by the end of 2003. Energy from other renewable was the lowest figure among others due to its percentage just around 1% by 1985, although it increased to 4% then, it recorded the button figure in 2003.
In contrast, the proportion of nuclear energy accounted for 22% at the beginning, but it saw a marked decrease for about 8% which happened in 2003. Regarded to natural gas and coal energy, they both grew considerably from 13% and 8% in 1985, to 23% and 22% by the end of given period. Eventually, the percentage of hydro energy ranked the same in both years with only 4%.