catfish and was considering doing the same for shrimp. In 2005, the seafood industry began to focus on domestic demand to compensate for declining exports. Vietnam is one of the top rice exporting countries in the world, but the limited sophistication of small-scale Vietnamese farmers causes quality to suffer. Vietnam is also the world's second-largest exporter of coffee, trailing behind Brazil. Vietnam produced in 2018: 44.0 million tons of rice (5th largest producer in the world, behind China, India, Indonesia and Bangladesh); 17.9 million tons of sugarcane (16th largest producer in the world); 14.8 million tons of vegetable; 9.8 million tons of cassava (7th largest producer in the world); 4.8 million tonnes of maize; 2.6 million tonnes of cashew nut (largest producer in the world); 2.0 million tons of banana (20th largest producer in the world); 1.6 million tons of coffee (2nd largest producer in the world, only behind Brazil); 1.5 million tons of coconut (6th largest producer in the world); 1.3 million tons of sweet potato (9th largest producer in the world); 1.2 million tons of watermelon; 1.1 million tons of natural rubber (3rd largest producer in the world, behind Thailand and Indonesia); 852 thousand tons of orange (18th largest producer in the world); 779 thousand tons of mango (including mangosteen and guava); 654 thousand tons of pineapple (12th largest producer in the world); 270 thousand tons of tea (6th largest producer in the world); In addition to smaller productions of other agricultural products. In 2018, Vietnam was the world's 5th largest producer of pork (3.8 million tonnes). This year the country also produced 839 thousand tons of chicken meat, 334 thousand tons of beef, 936 million liters of cow's milk, 20 thousand tons of honey, among others. Energy, mining and minerals Petroleum is the main source of energy, followed by coal, which contributes about 25% of the country's energy (excluding biomass). Vietnam's oil reserves are in the range of 270–500 million tons. Oil production rose rapidly to in 2004, but output is believed to have peaked and is expected to decline gradually. In 2003, mining and quarrying accounted for 9.4% of GDP, and the sector employed 0.7% of the workforce. Petroleum and coal are the main mineral exports. Also mined are antimony, bauxite, chromium, gold, iron, natural phosphates, tin, and zinc. In 2019, the country was the 9th largest world producer of antimony; 10th largest producer of tin