1990 were as follows: Rice: 3.4 kilograms/week Eggs: 100 grams/week Vegetables: 500 grams/week Fish products: 210 grams/week Dry beans: 500 grams/month Oil: 700 grams/month Salt: 280 grams/month Wheat flour: 700 grams/month This ration was designed to meet a minimum daily average of 2457 calories per person, the emergency caloric requirement set by the UN according to a 1985 WHO report on protein and energy requirements. When the direct distribution system was initiated in 1987, the energy supplied by a basic UNBRO ration was 2237 calories per person per day. In 1991 budgetary constraints forced UNBRO to reduce this basic ration to 2027 calories per person per day. Food distributions included 120 grams a month of soap. UNBRO also supervised the provision of water in the border camps, few of which had access to natural sources of potable water. Each week trucks supplied by the Thai government transported 650,000 liters of chlorinated water to storage tanks in the camps. In addition, UNBRO supplied building materials to refugees and implemented an agricultural program to produce fresh vegetables in the camps. UNBRO delegated responsibility for basic medical services, sanitation, public and environmental health programs, supplementary feeding and other services to numerous nongovernmental aid agencies operating on the border at that time. Education In 1988, with the agreement of the Royal Thai Government, UNBRO launched a major new educational assistance program, focusing at the primary level and providing support for curriculum development, the printing of educational materials, primary education, special education, adult literacy, and teacher training and the training of teacher trainers, the provision of supplies and the construction and equipment of classrooms. It also greatly expanded its support for social service programs targeting vulnerable and neglected groups and initiated new programs aimed at the development of life skills that would be useful in Cambodia upon repatriation. In all of these programs it strove to exclude political content and ensure that services would be provided equitably to all camp residents regardless of their political orientation. It promoted an ethic of egalitarianism and a system of reward based on merit. Beneficiaries As of January 1982, UNBRO provided services to 290,000 beneficiaries in three groups: • 155,000 Cambodians in nine camps in the border's Central sector stretching from Ban Sangae to Tap Prik. In five camps in the Central (or Northwestern) sector (Ban Sangae, Kok Tahan, Phnom Chat, Nong Samet and Nong Chan) UNBRO was permitted