According to the U.S. Census Bureau's 2006 American Community Survey, approximately 80 percent -- or 223.2 million people -- of Americans use only English at home.
The remaining 20 percent -- 55.8 million people -- speak a language other than English. Add the millions of tourists visiting the country each year and you have a huge demand for workers who can communicate in more than one language.
Spanish is by far the most popular non-English language spoken at home with roughly 34 million speakers nationwide. Still, there are millions of people speaking other languages -- including French, German, Mandarin, Arabic and lesser known languages -- that also benefit from bilingual workers.
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