<Tr> <Td> </Td> <Td> Khanin </Td> <Td> Bergson / CIA </Td> <Td> TsSu </Td> </Tr> <Tr> <Td> 1928--1980 </Td> <Td> 3.3 </Td> <Td> 4.3 </Td> <Td> 8.8 </Td> </Tr> <Tr> <Td> 1928--1941 </Td> <Td> 2.9 </Td> <Td> 5.8 </Td> <Td> 13.9 </Td> </Tr> <Tr> <Td> 1950s </Td> <Td> 6.9 </Td> <Td> 6.0 </Td> <Td> 10.1 </Td> </Tr>

Treatment of domestic critics and opponents soviet union