<Tr> <Th> 1979 </Th> <Td> Navy (4) </Td> <Td> 13--9 </Td> <Td> 28--7 </Td> <Td> 31--7 </Td> </Tr> <Tr> <Th> 1980 </Th> <Td> Shared (Navy retained trophy) (3) </Td> <Td> 21--20 </Td> <Td> 47--24 </Td> <Td> 33--6 </Td> </Tr> <Tr> <Th> 1981 </Th> <Td> Navy (5) </Td> <Td> 30--13 </Td> <Td> 7--3 </Td> <Td> 3--3 </Td> </Tr> <Tr> <Th> 1982 </Th> <Td> Air Force (1) </Td> <Td> 24--21 </Td> <Td> 27--9 </Td> <Td> 24--7 </Td> </Tr>

When was the last time army won the commander in chief trophy