<Tr> <Th_colspan="2"> Current NGN exchange rates </Th> </Tr> <Tr> <Td> From Google Finance: </Td> <Td> AUD CAD CHF EUR GBP HKD JPY USD INR CNY </Td> </Tr> <Tr> <Td> From Yahoo! Finance: </Td> <Td> AUD CAD CHF EUR GBP HKD JPY USD INR CNY </Td> </Tr> <Tr> <Td> From XE: </Td> <Td> AUD CAD CHF EUR GBP HKD JPY USD INR CNY </Td> </Tr>

When did nigeria change to naira and kobo