Report by
Interesting stats from National Restaurant Association
Jul 25, 2013
Link here. 
2012 US "Facts at a glance":
- $660.5 billion: Restaurant-industry sales projected for 2013.
- 980,000: Number of restaurant locations in the United States.
- 4%: Restaurant-industry sales share of the U.S. gross domestic product.
- $1.8 billion: Restaurant-industry sales on a typical day in 2013.
- 13.1 million: Number of restaurant-industry employees.
- 47%: Restaurant-industry share of the food dollar.
- 93%: Percentage of eating and drinking places with fewer than 50 employees.