<Tr> <Td> </Td> <Td> Argentina </Td> <Td> 10.6 </Td> <Td> 10.6 </Td> </Tr> <Tr> <Td> </Td> <Td> Slovakia </Td> <Td> 7.3 </Td> <Td> 7.3 </Td> </Tr> <Tr> <Td> 5 </Td> <Td> United States </Td> <Td> 6.5 </Td> <Td> 6.5 </Td> </Tr> <Tr> <Td> 6 </Td> <Td> Hungary </Td> <Td> 5.9 </Td> <Td> 5.9 </Td> </Tr>

What's the infant mortality rate in the united states