Hot dogs by the numbers

July is National Hot Dog Month. Here are some fun facts about an American staple.

1. Baseball fans consume more than 21 million hot dogs a year at Major League Baseball parks, according to the National Hot Dog & Sausage Council.

2. Los Angeles consumes more hot dogs than any other American city. (More than 39 million annually.)

3. On the Fourth of July, Americans eat approximately 150 million hot dogs.

4. Americans spent about $2.5 billion on hot dogs in 2014.

5. Hot dogs are made from meat trimmings, fat, salt and preservatives like sodium nitrite.