Figure 6-4 Index of Key Air Pollutant Emissions from U.S. Transportation: 1990-2003

Index: 1990 = 1.0

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Key: PM-10 and PM-2.5 = airborne particulates of less than 10 microns or 2.5 microns, respectively.

...

Figure 6-2 U.S. Carbon Dioxide Emissions from Energy Use: 1985-2005

Million metric tons of carbon

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Figure 6-2 U.S. Carbon Dioxide Emissions from Energy Use: 1985-2005

Million metric tons of carbon

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Notes: 2005 data are preliminary.

One ton of carbon equals 3.667 tons of carbon dioxide gas. Electric...

Figure 6-1 New Passenger Car and Light Truck Fuel Economy Averages: Model Years 1985-2006

Miles per gallon

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Figure 6-1 New Passenger Car and Light Truck Fuel Economy Averages: Model Years 1985-2006

Miles per gallon

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Note: 2005 data are revised from the previous edition. 2006 data are preliminary.

Source: U.S....

Figure 5-10 New Passenger Car and Light Truck Sales: Model Years 1985-2006

Millions of vehicles

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Figure 5-10 New Passenger Car and Light Truck Sales: Model Years 1985-2006

Millions of vehicles

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Notes: Data are based on Environmental Protection Agency (EPA) definitions of light trucks (gross vehicle weight of 8,500 pounds...

Figure 5-3 Transportation Services Index (TSI)

(Seasonally Adjusted)

Chain-type Index: 2000 = 100 (Yearly average based)

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Figure 5-3 Transportation Services Index (TSI)

(Seasonally Adjusted)

Chain-type Index: 2000 = 100 (Yearly average based)

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Notes: The TSI total is a single index measure of monthly output of for-hire...

Figure 5-2 Average Household Expenditures by Major Spending Category: 2005

(Current dollars)

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