its right above usa, with usa's 85% poor getting only 15% from its nation's available total wealth/income. worse than the distribution of wealth in middle ages.
ussr's problem was that it was not able to dominate the world natural resources like the anglo-american pact. it only had a small segment of resources to its disposal in its bloc.
and because they had had committed themselves openly to surpassing the western pact in military power and space race, in 1960 socialist international and channelized their resources entirely to these, they have fallen behind in consumer amenities. but that is due to the neverending threat that the western pact had inflicted upon them, starting with the leader of the free world (then) great britain landing with 18 other nations in russia to suppress the revolting public in order to kill the revolution and reinstall tzar and aristocracy. get a load of that irony. leader of the free world, invades your country to reinstall tzar on top of you so that you may live under aristocracy. this created an intense environment of fear and allowed sociopath factions to take power at the start of revolution. causing, entire world to go into a cold war, all thanks to great britain and their filth.
thankfully, a war never materialized. else, the military machine they built would run over us twice.