How much greater is the range for the cities in the south than the cities in the north?
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Here's the table.
Northern Cities Southern Cities
Portland 145 mi² Orlando 111 mi²
Seattle 84 mi² New Orleans 350 mi²
New York City 305 mi² Los Angeles 503 mi²
Detroit 143 mi² San Diego 372 mi²
Minneapolis 58 mi² Atlanta 132 mi²