slow. In 1986 rubber production totaled about 24,500 tons (from an area of 36,000 hectares, mostly in Kampong Cham Province), far below the 1969 prewar output of 50,000 tons (produced from an area of 50,000 hectares). The government began exporting rubber and rubber products in 1985. A major customer was the Soviet Union, which imported slightly more than 10,000 tons of Cambodian natural rubber annually in 1985 and in 1986. In the late 1980s, Vietnam helped Cambodia restore rubber-processing plants. The First Plan made rubber the second economic priority, with production targeted at 50,000 tons—from an expanded cultivated area of 50,000 hectares—by 1990. Other commercial crops included sugarcane, cotton, and tobacco. Among these secondary crops, the First Plan emphasized the production of jute, which was to reach the target of 15,000 tons in 1990. Livestock Animal husbandry has been an essential part of Cambodian economic life, but a part that farmers have carried on mostly as a sideline. Traditionally, draft animals--water buffalo and oxen—have played a crucial role in the preparation of rice fields for cultivation. In 1979 the decreasing number of draft animals hampered agricultural expansion. In 1967 there were 1.2 million head of draft animals; in 1979 there were only 768,000. In 1987 Quan Doi Nhan Dan (People's Armed Forces, the Vietnamese army newspaper) reported considerable growth in the raising of draft animals in Cambodia. Between 1979 and 1987, the number of cattle and water buffalo tripled, raising the total to 2.2 million head in 1987. In the same year, there were 1.3 million hogs and 10 million domestic fowl. Fisheries Cambodia's traditional source of protein is freshwater fish, caught mainly from the Tonle Sap and from the Tonle Sab, the Mekong, and the Basak Rivers. Cambodians eat fish fresh, salted, smoked, or made into fish sauce and paste. A fishing program, developed with Western assistance, was very successful in that it more than quadrupled the output of inland freshwater fish in three years, from 15,000 tons in 1979 to 68,700 tons in 1982, a peak year. Labor practices The U.S. Department of Labor reported in its 2013 Findings on the Worst Forms of Child Labor that the Cambodian agricultural sector employed underage children who engaged in hazardous activities, from deep-sea and night sea fishing to logging for the production of timber. In 2014, the Bureau of International Labor Affairs issued a List of Goods Produced by Child