source statistical abstract of the united states 1889 edition 478 prices us census bureau 2006 section 14 this presents indexes producer and consumer actual for selected commodities energy primary sources these data are monthly publications department labor statistics bls which include review con sumer price index detailed report pro ducer import export commerce economic analysis is gross domestic product measures ppi dating from 1890 oldest continu ous series published by it designed to measure average changes in received producers all at stages processing produced has undergone several revi sions see february 1962 april 1978 august 1988 now based on approximately 10 000 indi vidual products groups along with about 100 quotations per month net output manufacturing mining industries have been added recent years used
