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All data are offered in historical and constant dollars.

Historical-Dollar Data
The data published in the Greenbook are in historical U.S. dollars. Those data reflect the amount of assistance in a given year without any adjustment for inflation.
Constant-Dollar Data
In addition to the historical-dollar data published in the Greenbook, this website also makes those data available in constant dollars. The inflation-adjusted data allow for the comparison of levels of assistance in different time periods.

Detailed Foreign Assistance Data

Available Reports

Data Files

Data revised April 15, 2014