The weight of the CPI is actually not the same for each period, it can be divided into eight categories, but the percentage of each category will be adjusted according to the current situation, but the overall change will not be too big, you can refer to it.
I. Food 31.79%
II. Tobacco, Alcohol & Supplies : 3.49
III. Clothing 8.51%
IV. Household Equipment & Supplies & Services 5.64%
V. Medical Care & Personal Supplies 9.64%
VI. Transportation & Communication 9.95%
VII. Education and cultural goods and services 13.75%
VIII. Housing (the cost of building and renovation materials; rent; home loans; property costs; utilities and fuel costs) 17.22%
This is the general, if the specific can be broken down a lot, you can go to the CPI bulletin in each period out of the time to see.
Here's the main breakdown I've put together for you in a nutshell.
Grain; meat and poultry products; eggs; aquatic products; fresh vegetables; fresh fruits; fats and oils
Tobacco, alcohol
Clothing, shoes
Consumer durables, household services, and processing and repair services
Drugs, Chinese herbal medicines and proprietary Chinese medicines, and health care services
Transportation, vehicle fuels and parts, and vehicle use and maintenance
Inter-city transportation, and urban public transportation.
Education, Recreation and Culture, Travel, Recreation and Culture Durables
Water, Electricity, Fuel, Materials for Building and Improvement, Housing Rent.