<Tr> <Td> </Td> <Td> 09! IX </Td> <Th> Harris, Franco Franco Harris </Th> <Td> Pittsburgh Steelers </Td> <Td> RB2! Running back </Td> <Td> </Td> </Tr> <Tr> <Td> 1976 </Td> <Td> 10! X </Td> <Th> Swann, Lynn Lynn Swann </Th> <Td> Pittsburgh Steelers </Td> <Td> WR1! Wide receiver </Td> <Td> </Td> </Tr> <Tr> <Td> 1977 </Td> <Td> 11! XI </Td> <Th> Biletnikoff! Fred Biletnikoff </Th> <Td> Oakland Raiders </Td> <Td> WR2! Wide receiver </Td> <Td> </Td> </Tr> <Tr> <Td> 1978 </Td> <Td> 12! XII </Td> <Th> Martin! Harvey Martin </Th> <Td> Dallas Cowboys </Td> <Td> DE1! Defensive end </Td> <Td> </Td> </Tr>

How many times can you vote for super bowl mvp