Indices for continents,regions and theworld are computed by summing the coun-try aggregates,which for that purposeare converted into US dollars．The exchan-ge rates of national currencies for USdollars are those publi...Indices for continents,regions and theworld are computed by summing the coun-try aggregates,which for that purposeare converted into US dollars．The exchan-ge rates of national currencies for USdollars are those published by the Inter-national Monetary Fund,with the excep-tion of those of eastern European coun-展开更多
文摘Indices for continents,regions and theworld are computed by summing the coun-try aggregates,which for that purposeare converted into US dollars．The exchan-ge rates of national currencies for USdollars are those published by the Inter-national Monetary Fund,with the excep-tion of those of eastern European coun-
