 This support program provides 3.5 million farmers who produce basic commodities (mostly corn), and which represent 64% of all farmers, with a fixed income transfer payment per unit of area of cropland.This subsidy increased substantially during president Fox's administration, mainly to white corn producers in order to reduce the amount of imports from the United States.This program has been successful, and in 2004, roughly only 15% of corn imports are white corn –the one used for human consumption and the type that is mostly grown in Mexico– as opposed to 85% of yellow and crashed corn –the one use for feeding livestock, and which is barely produced in Mexico.