Photos 1/10 Commercial Energy Use, Activity, Weather, and Intensity, 1970-2011 Photo courtesy of 2/10 Heat Rates for Electric-Only and Two Classes of CHP Plants, 1985-2011 Photo courtesy of 3/10 Electric Power Sector: Energy Use and Aggregate Intensity, 1985-2011 Photo courtesy of 4/10 Energy Use, Energy Intensity, Output and Structural Effects in the Industrial Sector, 1970-2011 Photo courtesy of 5/10 Structural Impacts in the Industrial Sector, 1970-2011 Photo courtesy of 6/10 Energy Use, Activity, Energy Intensity and Other Factors in the Residential Sector, 1970-2011 Photo courtesy of 7/10 Source Energy Use per U.S. Household, Adjusted for Electricity Utility Sector Efficiency Improvement, 1985-2011 Photo courtesy of 8/10 Total Transportation Activity, Intensity, Energy Use, and Modal Shifts, 1970-2011 Photo courtesy of 9/10 Passenger Activity, Intensity, Energy Use, and Modal Shifts, 1970-2011 Photo courtesy of 10/10 Freight Activity, Energy Use, Intensity, and Modal Shifts, 1970-2011 Photo courtesy of