The circular charts elucidate the proportion of major energy sources in The United States of America in 1980 and 1990.
Overall, it is apparent that maximum energy was produced using oil, whereas energy generated from hydroelectric power had been accounted least.
By casting a fleeting glance, in 1980, the major percentile of power was generated from oil witnessed well over two-fifths, whilst 33 percent power had been produced after a decade from oil. By contrast, approximately a quarter of total energy of America was manufactured from natural gas in both years.
Further scrutinizing the details, 22% power was being generated from coal in 1980 in The States, however after ten year, an increment of 5% had been registered for the production of energy by utilization of coal. Meanwhile, America produced similar per centum of power from hydroelectric power in both years. Surprisingly, energy generation from nuclear power burgeoned by 5% in the given latter year. 
The circular charts elucidate the proportion of major  
energy
 sources in The United States of America in 1980 and 1990. 
Overall
, it is apparent that maximum  
energy
  was produced
 using oil, whereas  
energy
 generated from hydroelectric  
power
 had  
been accounted
 least.
By casting a fleeting glance, in 1980, the major percentile of  
power
  was generated
 from oil witnessed well over two-fifths, whilst 33 percent  
power
 had  
been produced
 after a decade from oil. By contrast, approximately a quarter of total  
energy
 of America  
was manufactured
 from natural gas in both years. 
Further
 scrutinizing the  
details
, 22%  
power
 was  
being generated
 from coal in 1980 in The States,  
however
 after ten year, an increment of 5% had  
been registered
 for the production of  
energy
 by utilization of coal. Meanwhile, America produced similar per centum of  
power
 from hydroelectric  
power
 in both years.  
Surprisingly
,  
energy
 generation from nuclear  
power
 burgeoned by 5% in the  
given
 latter year.