<Tr> <Th_colspan="2"> Namibian dollar </Th> </Tr> <Tr> <Td_colspan="2"> 10, 50 cents, N $1, N $5, N $10 </Td> </Tr> <Tr> <Th_colspan="2"> ISO 4217 </Th> </Tr> <Tr> <Th> Code </Th> <Td> NAD </Td> </Tr>

Write a short paragraph on the history of the currency of namibia