<Tr> <Th> Regional languages </Th> <Td> Government - sponsored languages: Akuapem Twi, Asante Twi, Ewe, Dagaare, Dagbani, Dangme, Ga, Gonja, Kasem, Mfantse, Nzema, </Td> </Tr> <Tr> <Th> Main immigrant languages </Th> <Td> Chinese,, Hindi, Lebanese Arabic, Sindhi, Yoruba </Td> </Tr> <Tr> <Th> Sign languages </Th> <Td> Ghanaian Sign Language (American Sign Language) Adamorobe Sign Language Nanabin Sign Language </Td> </Tr> <Tr> <Th> Lingua franca </Th> <Td> English </Td> </Tr>

When did english become the official language of ghana