<Tr> <Td> 1968 </Td> <Td> 50.6% 32,363 </Td> <Td> 43.7% 27,939 </Td> <Td> 5.7% 3,659 </Td> </Tr> <Tr> <Td> 1964 </Td> <Td> 37.3% 21,299 </Td> <Td> 62.6% 35,711 </Td> <Td> 0.1% 33 </Td> </Tr> <Tr> <Td> 1960 </Td> <Td> 54.5% 28,531 </Td> <Td> 45.3% 23,679 </Td> <Td> 0.2% 109 </Td> </Tr> <Tr> <Td> 1956 </Td> <Td> 55.4% 25,314 </Td> <Td> 44.6% 20,416 </Td> <Td> </Td> </Tr>

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