<Tr> <Td> Malawi </Td> <Td> 1963 </Td> <Td> yes </Td> <Td> dates </Td> <Td> (Post abolished) </Td> </Tr> <Tr> <Td> Malaysia </Td> <Td> 1957 </Td> <Td> yes </Td> <Td> years </Td> <Td> Najib Razak </Td> </Tr> <Tr> <Td> Mali </Td> <Td> 1957 </Td> <Td> yes </Td> <Td> dates </Td> <Td> Abdoulaye Idrissa Maïga </Td> </Tr> <Tr> <Td> Malta </Td> <Td> 1921 </Td> <Td> yes </Td> <Td> years </Td> <Td> Joseph Muscat </Td> </Tr>

What is the tenure of the british prime minister answer