Ports America would start paying Maryland annual rent of $3.2 million, and the inflation kicker starts at year 5. Say the state got the full, 3.5 percent raise every year. By 2060 the basic annual rent paid by whoever owns the lease then would be $15 million. But if inflation were much more, $15 million wouldn't be very impressive. Say average inflation were 6 percent. Then, thanks to 50 years of compounding, the real value of $3.2 million in 2060 would be $59 million. But Ports America would be making only $15 million in lease payments -- much less in real dollars than it pays now. So in nominal dollars Ports America's rent would go up only fivefold while what it could charge shippers could go up 18-fold. PA's profit-sharing deal with Maryland, in which it would pay the state $15 for every container over 500,000 a year, is also subject to the 3.5-percent inflation cap.