The pie charts illustrate the 
energy
 ratio of a Use synonyms
country
's Use synonyms
resources
 in 1985 and 2003.
  Oil was a dominant Use synonyms
energy
 source in the Use synonyms
country
 in 1985, whose proportion reached over half. Nuclear power was Use synonyms
also
 considered a substantial Linking Words
energy
 source, having the second largest proportion in the chart, 22%. Use synonyms
Moreover
, other significant power Linking Words
resources
 existed, Use synonyms
for instance
, natural gas, which held a rate of 13%, and coal, whose portion was 8%. The weight of Hydro and some other renewable Linking Words
energy
 Use synonyms
resources
 was negligible at that time.
  Regarding the second diagram, it is evident that the resource structure of the Use synonyms
country
 has changed in nearly two decades. Only oil maintained its prominent status, Use synonyms
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 Linking Words
country
, Use synonyms
while
 coal took third place with a figure of 22%. Linking Words
In contrast
, nuclear plummeted to 8%, with a shrink of approximately three times. Linking Words
Furthermore
, hydro and renewable Linking Words
energy
 Use synonyms
resources
 continued to make a tiny contribution to Use synonyms
energy
, which can be neglected during Use synonyms
this
 period. 
  Linking Words
Overall
, oil played an essential role in Linking Words
energy
 production at the time. Though the Use synonyms
country
 has made an effort to change its structure, it continued to use nonrenewable Use synonyms
resources
 as its primary Use synonyms
energy
 source. It needed to be made aware of the unignorable potential of renewable Use synonyms
resources
.Use synonyms