In the 1980s, 1 yuan could buy a Chinese translation of a world famous book published by the Commercial Press. In 1980s, the average price of rice was 0. 149-0.205 yuan/kg, and one yuan could buy about 4.87 -6.7 kg of rice. The price of edible peanut oil is 0.86-0.88 yuan/kg, and one yuan can buy about1.13-1.16 kg of edible peanut oil. The price of pork is 0.85- 1 yuan/kg, and one yuan can buy about 1- 1. 17 kg of pork.