According to data released by the Turkish Statistical Institute, the overall export unit value index decreased 9 percent in March compared to the same month last year.While the index for food, beverages and tobacco increased 4.7 percent, the index for crude materials not including fuels, fuels and manufactured goods other than food, beverages and tobacco decreased 9.7 percent, 41.2 percent and 9 percent, respectively.On the other hand, the overall import unit value index decreased by 14.8 percent in March compared to the same month the previous year.