A dataset of wholesale market transaction prices of leeks in the Yunnan-Guizhou region (2012–2020)

Leek is widely appreciated for its rich nutrition, unique flavor and medicinal value. Its historical price data is of great significance for analyzing future price fluctuation trend. This dataset compiles and organizes the average daily wholesale prices of leeks from 2012 to 2020 in 38 wholesale markets of agricultural products in the Yunnan–Guizhou region, one of the main leek-producing areas in China. It covers 6 provinces (or autonomous regions): Guizhou, Yunnan, Guangxi Zhuang Autonomous Region, Sichuan, Hubei and Hunan. he raw data in this dataset is mainly sourced from the National Agricultural Product Business Information Public Service Platform and the project team’s field market surveys. The basic dataset was processed through data cleaning and analysis, including filling missing values and removing outliers, to ensure data completeness and reliability. Based on the processed dataset, we further generated weekly, monthly, quarterly, and annual average price series, along with their corresponding month-on-month and year-on-year change rates. This dataset provides a scientific basis for researching the patterns of leek price fluctuations in the Yunnan–Guizhou region, and offers important scientific support for relevant government departments in guiding planting layout and stabilizing regional leek prices.