<Tr> <Th> 28 April 1951 election </Th> <Td> 47.6% </Td> <Td> 50.3% </Td> <Td> 2.1% </Td> <Td> 49.3% </Td> <Td> 50.7% </Td> <Td> 52 </Td> <Td> 69 </Td> <Td> 0 </Td> <Td> 121 </Td> </Tr> <Tr> <Th> 10 December 1949 election </Th> <Td> 46.0% </Td> <Td> 50.3% </Td> <Td> 3.7% </Td> <Td> 49.0% </Td> <Td> 51.0% </Td> <Td> 47 </Td> <Td> 74 </Td> <Td> 0 </Td> <Td> 121 </Td> </Tr> <Tr> <Th> 28 September 1946 election </Th> <Td> 49.7% </Td> <Td> 39.3% </Td> <Td> 11.0% </Td> <Td> 54.1% </Td> <Td> 45.9% </Td> <Td> 43 </Td> <Td> 26 </Td> <Td> 5 </Td> <Td> 74 </Td> </Tr> <Tr> <Th> 21 August 1943 election </Th> <Td> 49.9% </Td> <Td> 23.0% </Td> <Td> 27.1% </Td> <Td> 58.2% </Td> <Td> 41.8% </Td> <Td> 49 </Td> <Td> 19 </Td> <Td> 6 </Td> <Td> 74 </Td> </Tr>

Which system of voting is used in the house of representatives