<Tr> <Td> Hong Kong </Td> <Td> 3.4 </Td> <Td> 2012 </Td> <Td> </Td> </Tr> <Tr> <Td> Niger </Td> <Td> 4.5 </Td> <Td> 2012 </Td> <Td> </Td> </Tr> <Tr> <Td> Saint Lucia </Td> <Td> 4.4 </Td> <Td> 2012 </Td> <Td> </Td> </Tr> <Tr> <Td> Uruguay </Td> <Td> 2.9 </Td> <Td> 2012 </Td> <Td> </Td> </Tr>

How much of us gdp is spent on education