The pie charts compares the percentage of using different raw and renewable material sources to producing energy in a country from 1985 to 2003.
Overall, it is noticeable, that the oil resources is used less, while coal in contrast drained more. However, in a country renewable source of energy start be more trending.
In 1985, about a half of diagram was taken by a oil resouce, while in 2003 it takes only more than third of the chart. However, the using of coal increased almost third times from 8 to 22 percent. In contrast to others, hydro source of energy remained its percentage of 4. Furthermore,other renewable sources of energy by 2003 experienced fourfold increase, while in 1985 the number was only 1 percent of whole diagram.
Another striking point is about nuclear and natural gas materials. Meanwhile natural gas resource usage was 22 per cent and nuclear was 8 percent in 1985, both of them replaced their proportions in 2003.