Aggregate data of economical, military, demographical, social and political indicators concerning 7 Eastern European communist countries. ( Theme 1: population and society ) population density / population growth 1970-1978 / infant mortality and life expectancy / degree of urbanization / amenities running water, central heating etc. / housing conditions / hospital beds and medical doctors / kindergarten / women in branches of economy / religion / divorce / education / technics and science / production of scientific books / social mobility. ( Theme 2: economy ) GNP / investments / import and export / employment and production in sectors of economy / incomes / meat consumption and calorie supply / trade with comecon/ capitalist and underdeveloped countries / trade deficit and debt to foreign countries / growth of import, export and incomes / labour productivity / required work-time for selected goods / capital intensity / nr. of telephones, tv-sets, cars, etc. / energy import and consumption / ratio employees and workers / development real incomes and prices / private savings / income concentration / retail trade index / hectare yields and portion of private agriculture. ( Theme 3: defense ) defense expenditures / arms export / armed forces / GNP of defense expenditures / riots and protest demonstration / armed attacks and persons killed / government sanctions / internal security forces. ( Theme 4: miscellaneous ) content analysis of newspapers concerning human rights/ disarmament/ economical and technical co-operation and conflicts after the final acts of Helsinki and Belgrade.