<Tr> <Th> Gini coefficient </Th> <Td> 30.2 (2015) </Td> </Tr> <Tr> <Th> Labor force </Th> <Td> 25 million (2012 est .) </Td> </Tr> <Tr> <Th> Labor force by occupation </Th> <Td> Agriculture: 6.4%, industry: 24.2%, services: 69.4% (2011 est .) </Td> </Tr> <Tr> <Th> Unemployment </Th> <Td> 3.1% (Oct. 2015) </Td> </Tr>

When did south korea became a developed country