http://www.worldbank.org/poverty/inequal/index.htm
My favorite, source, but www version seems not to be working. http://www.wider.unu.edu/wiid/wwwwiid.htm
Downloaded it, and...it works, here is some serial data
USSR 1980: 24,6 USSR 1985: 25,6 USSR 1989: 27,7 Russia 1997: 40-48 (depending on method)
China 1953: 55 China 1964: 30 China 1970: 27 China 1975: 26 China 1985: 32 China 1990: 35
(Wonderful indexes of 15-18 only exist for urban population only)
China 1995 (Urban):28
China 1995 (Overall): 45
Cuba 1953: 57 Cuba 1978: 27 (no data after 1978)
Indonesia 1965: 38 Indonesia 1996: 36
South Korea 1965: 35 South Korea 1970: 35 South Korea 1993: 31
No data after 1993. Doug is right.
Taiwan 1980: 27 Taiwan 1985: 29 Taiwan 1992: 31
Malaysia: no data after 1987. Around 45 in the last 30 years
Less unequality in the list: Czechoslovakia 1988: 19
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