American football is by several measures the most popular spectator sport in the United States; the National Football League (NFL) has the highest average attendance of any sports league in the world, and the Super Bowl is watched by tens of millions globally. Even on the collegiate level, college football games receive millions of viewers per television broadcast; most notably the College Football Playoff, which averages 25 million viewers. Baseball has been regarded as the U.S. national sport since the late 19th century, with Major League Baseball (MLB) being the top league. Basketball and ice hockey are the country's next two leading professional team sports, with the top leagues being the National Basketball Association (NBA) and the National Hockey League (NHL). College football and basketball attract large audiences. The NCAA Final Four is one of the most watched sporting events. In soccer (a sport that has gained a footing in the United States since the mid-1990s), the country hosted the 1994 FIFA World Cup, the men's national soccer team qualified for ten World Cups and the women's team has won the FIFA Women's World Cup four times; Major League Soccer is the sport's highest league in the United States (featuring 23 American and three Canadian teams). The market for professional sports in the United States is roughly , roughly 50% larger than that of all of Europe, the Middle East, and Africa combined.