Merchandise Terms of Trade (1987 = 100)
Net barter (merchandise) terms of trade (1987 = 100) are the ratio of the export price index to the corresponding import price index measured relative to the base year of 1987. 
Net barter (merchandise) terms of trade (1987 = 100) are the ratio of the export price index to the corresponding import price index measured relative to the base year of 1987. 