The value of the world’s biggest sports teams has skyrocketed in the last 15 years, driven by increasing television revenues, improved stadiums, and more sophisticated business operations.

In 2010, not a single sports team was worth $2 billion — now, there are more than 100 valued above that mark. America’s NFL dominates the top 10: Most pro American football teams have a similar value thanks to its shared revenues and salary cap, meaning even the weakest make reliable money, Sportico reported.

Soccer’s highest-value clubs, by contrast, are worth many times more than those further down the league tables, especially as the worse can be relegated from the top divisions that command the most lucrative television and advertising contracts.