It's claimed that it brings in 17.5m viewers each week in the US, and that WWE boasts one billion followers across various social media platforms.

It also brings in some revenue from other sources, including subscriptions and advertising.

Walmart, which brings in millions of customers each week, is a bellwether of U.S. consumer trends.

“They are the person with the power who brings in the money.”

The USS Harry S Truman is proof of what America brings in sheer size and numbers - with 5,000 crew and more than 60 aircraft.