Original sentence: British, businessmen in China) and the tea duty accounted for 10% of the government income.China was the main supplier of tea to the British, who were domestically consuming 30 million pounds of Chinese tea by 1830 averaging 2 pounds of leaves for every citizen
Edited sentence: British, businessmen in China), and the duty duty on tea accounted for 10% of the government's income.China was the main supplier of tea to the British, who were domestically consuming 30 million pounds of Chinese tea by 1830 averaging 2 pounds of leaves for every citizen