<Tr> <Th> Surface area </Th> <Td> 570,000 km (220,000 sq mi) </Td> </Tr> <Tr> <Th> Average depth </Th> <Td> 95 m (312 ft) </Td> </Tr> <Tr> <Th> Max . depth </Th> <Td> 700 m (2,300 ft) </Td> </Tr> <Tr> <Th> Water volume </Th> <Td> 54,000 km (4.4 × 10 acre ft) </Td> </Tr>

What is the average depth of the north sea
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