Producer Price Index
1. Explanatory Notes
Producer Price Index for manufactured goods consists of producer price index and purchasing price index.
The producer price index reflects the trend and level of prices change when the products are sold for the first time.
The purchasing price index reflects the trend and level of prices change for the products purchased by the industrial enterprises as intermediate inputs.
2. Statistical Coverage
The survey of producer prices for industrial products covers the prices of industrial products in 40 major industrial categories and more than 1300 basic categories； the survey of purchasing prices for industrial producers covers the prices of industrial products in 9 major categories and more than 800 basic categories.
3. Survey Methods
The survey of producer prices for industrial products adopts the method of combining key survey with typical survey， involving more than 40，000 industrial enterprises in China.
4. Statistical Standard
Industrial Classification is based on the “Industrial Classification for National Economic Activities” （GB/T4754-2017）.
5. Data Description
Due to "rounding-off"， sometimes the aggregate data is the same as the high or low value of the classified data. The price changes of some categories or industries are small， and according to the "rounding-off" to retain 1 decimal place after the rise and fall is 0， in the expression of price changes as flat.