[National Bureau of Statistics: The impact of this base period rotation on the year-on-year indices of CPI and PPI is generally small] Jin10 News, February 11 – On February 11, the National Bureau of Statistics released the Consumer Price Index (CPI) and Producer Price Index (PPI) data for the nation, based on the 2025 base period. This marks the first data release following the base period rotation. After the base period rotation, changes in survey classification directories, survey sites, representative specifications, weights, and other factors will all have some impact on the price indices. However, the direction and magnitude of these factors vary, and their combined effect determines the overall impact on the indices. According to calculations, the impact of this base period rotation on the year-on-year indices of CPI and PPI averages approximately 0.06 and 0.08 percentage points, respectively, which is generally small.