Some figures from 2015
63.9% of people own a U.S. flag. $4.4 million was spent on imports of U.S. flag, the vast majority of which came from China ($4.3 million)
According to the National Retail Federation, 64.5% of people will attend a Fourth of July picnic or barbecue.
The National Hot Dog and Sausage Council says that out of an estimated 20 billion hot dogs consumed by Americans each year, 155 million are consumed on July 4.