Until the early 1970s, Sudan's agricultural output was mostly dedicated to internal consumption. In 1972, the Sudanese government became more pro-Western, and made plans to export food and cash crops. However, commodity prices declined throughout the 1970s causing economic problems for Sudan. At the same time, debt servicing costs, from the money spent mechanizing agriculture, rose. In 1978, the International Monetary Fund (IMF) negotiated a Structural Adjustment Program with the government. This further promoted the mechanized export agriculture sector. This caused great economic problems for the pastoralists of Sudan (See Nuba Peoples).