<P> The following lists events that happened during 1967 in Australia . </P> <Table> <Tr> <Th_colspan="2"> 1967 in Australia </Th> </Tr> <Tr> <Th> Monarchy </Th> <Td> Elizabeth II </Td> </Tr> <Tr> <Th> Governor - General </Th> <Td> Lord Casey </Td> </Tr> <Tr> <Th> Prime minister </Th> <Td> Harold Holt, then John McEwen </Td> </Tr> <Tr> <Th> Population </Th> <Td> 11,912,253 </Td> </Tr> <Tr> <Th> Australian of the Year </Th> <Td> The Seekers </Td> </Tr> <Tr> <Th> Elections </Th> <Td> VIC, Referendum, Half - Senate </Td> </Tr> </Table> <Tr> <Th_colspan="2"> 1967 in Australia </Th> </Tr>

What was the population of australia in 1967