<Tr> <Th> State </Th> <Th> Minimum driving age </Th> <Th> Notes </Th> </Tr> <Tr> <Td> Algeria </Td> <Td> 18 </Td> <Td> </Td> </Tr> <Tr> <Td> Cameroon </Td> <Td> 16 </Td> <Td> </Td> </Tr> <Tr> <Td> Ethiopia </Td> <Td> 18 </Td> <Td> </Td> </Tr>

When was the driving age changed to 16