https://www.rita.dot.gov/bts/sites/rita ... 04_23.html See this government chart data https://www.rita.dot.gov/bts/sites/rita ... 04_23.html https://www.rita.dot.gov/bts/sites/rita ... 04_23.html average fuel efficiency http://www.rita.dot.gov/b...ics/html/table_04_23.html U.S. Department of Transportation 17.1 mpg U.S. Department of Transportation http://www.rita.dot.gov/b...ics/html/table_04_23.html EIA U.S. Department of Transportation tampoco lo es en Estados Unidos average new car sold in this country in the 1990s table of average fuel efficiency EIA 17.1 mpg average fleet light duty vehicle fuel efficiency U.S. Department of Transportation https://www.rita.dot.gov/bts/sites/rita ... 04_23.html 11 percent less gas 11 percent less gas average mileage http://www.rita.dot.gov/b...ics/html/table_04_23.html https://www.rita.dot.gov/bts/sites/rita ... 04_23.html http://www.rita.dot.gov/b...ics/html/table_04_23.html U.S. Department of Transportation gradual fuel efficiency improvements 21.8 mpg http://www.rita.dot.gov/b...ics/html/table_04_23.html See this government chart http://www.rita.dot.gov/b...ics/html/table_04_23.html http://www.rita.dot.gov/b...ics/html/table_04_23.html http://www.rita.dot.gov/b...ics/html/table_04_23.html average fuel efficiency https://www.rita.dot.gov/bts/sites/rita ... 04_23.html http://www.rita.dot.gov/b...ics/html/table_04_23.html Department of Transportation http://www.rita.dot.gov/b...ics/html/table_04_23.html https://www.rita.dot.gov/bts/sites/rita ... 04_23.html 27 percent more fuel efficient http://www.rita.dot.gov/b...ics/html/table_04_23.html website http://www.rita.dot.gov/b...ics/html/table_04_23.html