The chart below shows the proportion of Energy produced from different sources in a country between 1985 and 2003

The pie charts illustrate the

energy

ratio of a

country

's

resources

in 1985 and 2003. Oil was a dominant

energy

source in the

country

in 1985, whose proportion reached over half. Nuclear power was

also

considered a substantial

energy

source, having the second largest proportion in the chart, 22%.

Moreover

, other significant power

resources

existed,

for instance

, natural gas, which held a rate of 13%, and coal, whose portion was 8%. The weight of Hydro and some other renewable

energy

resources

was negligible at that time. Regarding the second diagram, it is evident that the resource structure of the

country

has changed in nearly two decades. Only oil maintained its prominent status,

although

its portion has fallen to 39%. Natural gas, whose ratio increased to 23%, has replaced nuclear to become the second most significant resource in the

country

,

while

coal took third place with a figure of 22%.

In contrast

, nuclear plummeted to 8%, with a shrink of approximately three times.

Furthermore

, hydro and renewable

energy

resources

continued to make a tiny contribution to

energy

, which can be neglected during

this

period.

Overall

, oil played an essential role in

energy

production at the time. Though the

country

has made an effort to change its structure, it continued to use nonrenewable

resources

as its primary

energy

source. It needed to be made aware of the unignorable potential of renewable

resources

.