<Tr> <Td> 45 </Td> <Td> People's Republic of China </Td> <Td> 1971 </Td> <Td> 2017 </Td> <Td> Asia - Pacific </Td> <Td> Permanent member </Td> </Tr> <Tr> <Td> 25 </Td> <Td> Republic of China </Td> <Td> 1946 </Td> <Td> 1971 </Td> <Td> Asian </Td> <Td> Former permanent member, replaced by People's Republic of China </Td> </Tr> <Tr> <Td> 25 </Td> <Td> Russian Federation </Td> <Td> 1991 </Td> <Td> 2017 </Td> <Td> E. European </Td> <Td> Permanent member </Td> </Tr> <Tr> <Td> 21 </Td> <Td> Japan </Td> <Td> 1958 </Td> <Td> 2017 </Td> <Td> Asia - Pacific </Td> <Td> Current membership of Security Council expires 31 December 2017 </Td> </Tr>

When did nepal become the temporary member of security council