The pie charts illustrates the comparison of different resources includes oil, natural gas, coal, nuclear, hydro, and other renewable energy produced that changes in a country during 1985 and 2003.
Overall, oil resources still the biggest number in a country for energy resources. subsequently, natural gas and coal had increasing percentage and almost have the half of the pie chart in 2003. therefore, the nuclear energy saw a dramatic reduction in it is total production.
In 1985, the oil energy was the highest percentage that a country produced. therefore, there was a decreasing number around 13% in 2003. During the same time, natural gas and coal had sharper increase from 13% to 23% and coal from 8% to 22%. The gap for 1% make the coal became the third largest number and natural gas was the second of the rank.
On the other hand, the Nuclear energy had been sharp reduction from 22% to 8% in 2003. The Hydro energy just levelled of and other nenewable energy got small increase from 1% to 4%.