<Table> <Tr> <Th> Continent </Th> <Th> </Th> <Th> Area (km2) </Th> <Th> Area (mi2) </Th> <Th> Percent total landmass </Th> <Th> Population </Th> <Th> Percent total pop . </Th> <Th> Most populous city (proper) </Th> </Tr> <Tr> <Th> Africa </Th> <Td> </Td> <Td> 30,370,000 </Td> <Td> 11,730,000 </Td> <Td> 20.4% </Td> <Td> 1,186,178,000 </Td> <Td> 16.1% </Td> <Td> Lagos, Nigeria </Td> </Tr> <Tr> <Th> Antarctica </Th> <Td> </Td> <Td> 13,720,000 </Td> <Td> 5,300,000 </Td> <Td> 9.2% </Td> <Td> 4,490 </Td> <Td> 0.0% </Td> <Td> McMurdo Station </Td> </Tr> <Tr> <Th> Asia </Th> <Td> </Td> <Td> 43,820,000 </Td> <Td> 16,920,000 </Td> <Td> 29.5% </Td> <Td> 4,393,296,000 </Td> <Td> 59.8% </Td> <Td> Shanghai, China </Td> </Tr> <Tr> <Th> Europe </Th> <Td> </Td> <Td> 10,180,000 </Td> <Td> 3,930,000 </Td> <Td> 6.8% </Td> <Td> 738,442,000 </Td> <Td> 10.0% </Td> <Td> Moscow, Russia </Td> </Tr> <Tr> <Th> North America </Th> <Td> </Td> <Td> 24,490,000 </Td> <Td> 9,460,000 </Td> <Td> 16.5% </Td> <Td> 573,777,000 </Td> <Td> 7.8% </Td> <Td> Mexico City, Mexico </Td> </Tr> <Tr> <Th> Australia </Th> <Td> </Td> <Td> 9,008,500 </Td> <Td> 3,478,200 </Td> <Td> 5.9% </Td> <Td> 39,331,000 </Td> <Td> 0.5% </Td> <Td> Sydney, Australia </Td> </Tr> <Tr> <Th> South America </Th> <Td> </Td> <Td> 17,840,000 </Td> <Td> 6,890,000 </Td> <Td> 12.0% </Td> <Td> 418,447,000 </Td> <Td> 5.7% </Td> <Td> São Paulo, Brazil </Td> </Tr> </Table> <Tr> <Th> Continent </Th> <Th> </Th> <Th> Area (km2) </Th> <Th> Area (mi2) </Th> <Th> Percent total landmass </Th> <Th> Population </Th> <Th> Percent total pop . </Th> <Th> Most populous city (proper) </Th> </Tr> <Tr> <Th> Africa </Th> <Td> </Td> <Td> 30,370,000 </Td> <Td> 11,730,000 </Td> <Td> 20.4% </Td> <Td> 1,186,178,000 </Td> <Td> 16.1% </Td> <Td> Lagos, Nigeria </Td> </Tr> <Tr> <Th> Antarctica </Th> <Td> </Td> <Td> 13,720,000 </Td> <Td> 5,300,000 </Td> <Td> 9.2% </Td> <Td> 4,490 </Td> <Td> 0.0% </Td> <Td> McMurdo Station </Td> </Tr>

Which continent has the highest number of country