6.5band
The two graphs show the main sources of energy in the USA in the 1980s and the 1990s. The graphs compare data about 5 main sources of produced energy in USA in 1980 and 1990.
Overall, it is clear that, in both years, oil maintained dominance in energy generation, while h/power and coal constituted the least part of it.
Turning to the details, being 26% in 1980, the amount of energy...