Fun Facts to Celebrate National Hot Dog Day Hot dogs got their nickname "frankfurters" after being invented in Frankfurt, Germany in 1484. Americans purchase 350 million pounds of hot dogs at retail stores. The average American eats 50 hot dogs a year. 86 percent of adults top their dogs with mustard. New Yorkers purchase $101 billion worth of hot dogs each year, the most of
any state. MLB fans are expected to consume more than 19 million hot dogs and 4.6 million sausages during the 2018 season. Each Major League Baseball team also serves up its own unique type of hot dog at home games.