The Statistics Division has pioneered efforts in obtaining inter-country comparisons of agricultural output aggregates and the agricultural GDP. Preliminary results of the efforts of the Division are documented in an earlier publication, Social and Economic Development series No. 61, in 1986. In response to the growing demand for further results, the Statistics Division has initiated a project covering the period 1970 to 1990 and this report documents some of the results of the current effort. The present project is still limited by the availability of reliable data on the inputs. The Division believes that over time this deficiency will be attended to. However the coverage of countries and commodities in the exercise is extensive and it is made possible by the large data bank at the FAO.