Americans throw out 4.5 pounds of trash a day - twice that of 40 years ago.
76
The United States does not have an official language.
88
Approximately 4 to 5% of the U.S. population has one or more clinically significant phobias in a given year. Specific phobias occur in people of all ages. The average age of onset for social phobia is between 15 and 20 years of age, although it can often begin in childhood.
30
The average American spends a third of their overall time online playing games and using social networks.
298
One million Americans, about 3,000 each day, take up smoking each year. Most of them are children.
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Although African-Americans make up only 13% of the U.S. population, they accounted for one half of the estimated new HIV/AIDS diagnoses in 2004.
70
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2