<Tr> <Td> Female Population </Td> <Td> 1,417,208 </Td> </Tr> <Tr> <Td> Rural Population </Td> <Td> 1,736,236 </Td> </Tr> <Tr> <Td> Urban Population </Td> <Td> 834,154 </Td> </Tr> <Tr> <Td> Child Sex Ratio </Td> <Td> 936 female to 1000 male </Td> </Tr>

Who has divided tribes on the basis of economy into important and semi important types