The pie charts indicate changes in the proportions of energy produced in the US from 1983 to 2003. Summarize the information by selecting and reporting the main features, and make comparisons where relevant.

The pie charts indicate changes in the proportions of energy produced in the US from 1983 to 2003. Summarize the information by selecting and reporting the main features, and make comparisons where relevant.

The pie charts indicate changes in the proportions of energy produced in the US from 1983 to 2003. Summarize the information by selecting and reporting the main features, and make comparisons where relevant.

The pie charts indicate changes in the proportions of energy produced in the US from 1983 to 2003. Summarize the information by selecting and reporting the main features, and make comparisons where relevant.

The pie charts indicate changes in the proportions of energy produced in the US from 1983 to 2003. Summarize the information by selecting and reporting the main features, and make comparisons where relevant.

The pie charts indicate changes in the proportions of energy produced in the US from 1983 to 2003. Summarize the information by selecting and reporting the main features, and make comparisons where relevant.