<Tr> <Td> 18 </Td> <Td> 25 January 1948--21 November 1954 </Td> </Tr> <Tr> <Td> 17 </Td> <Td> 23 November 1960--19 March 1967 </Td> </Tr> <Tr> <Td> 14 </Td> <Td> 4 December 1977--4 June 1983 </Td> </Tr> <Tr> <Td> 12 </Td> <Td> 19 May 1957--27 April 1960 </Td> </Tr>

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