- In 2005, 64% of the 109 million U.S. families lived in single-family homes.
- From 1950 to 2005, the average size of a new U.S. single-family house increased by 148%; Avg house size in 1950 (983 sq ft), in 2005 (2,434 sq ft); during the same time the average area per person in a new U.S. single family house increased from 292 square feet to 840 square feet, or 188%.
- In 2006, American cars and light trucks used 17.3% of the total U.S. energy consumption.
- In 1987-1988, light-duty vehicle fuel economy peaked at 22.1 mpg.
- During 1987-2007, average vehicle weight increased 29%, horsepower increased by 89%, acceleration increased by 27%
Source: http://css.snre.umich.edu/facts/
[Image source: Metropolitan Museum of Art]
