Earning Curve: The sea

Carnival, owner of P&O and Cunard, net income ('07): £1.2bn

Last Updated: 09 Oct 2013

UK fishing industry, value of total catch ('06): £610m

World record blue-fin tuna ('08): £23k

Coastguard, base annual salary: £14k

America's Cup, prize money: £0

Exxon Mobil, cost of cleaning Exxon Valdez oil spill: £1.7bn.

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