In the country of Marut, the Foreign Trade Agency' s records were reviewed in 1994 in light of information then newly available about neighboring Goro  The review revealed that in every year since 1963, the agency' s projection of what Goro' s gross national product(GNP) would be five years later was a serious underestimate
The review also revealed that in every year since 1963, the agency estimated Goro' s GNP for the previous year--a Goro state secret--very accurately
The amount by which the agency underestimated the GNP it projected for Goro tended to increase over time.