Because the sample size of a local area is smaller, the local area index is subject to substantially more sampling and other measurement error than the national index. Local data are then combined to obtain a U.S. For further details see the CPI home page on the internet at and the CPI section of the BLS Handbook of Methods available on the internet at In calculating the index, price changes for the various items in each location are averaged together with weights that represent their importance in the spending of the appropriate population group. Alternatively, that relationship can also be expressed as the price of a base period market basket of goods and services rising from $100 to $107. An increase of 7 percent from the reference base, for example, is shown as 107.000. The index measures price changes from a designated reference date for most of the CPI-U the reference base is 1982-84 equals 100. All taxes directly associated with the purchase and use of items are included in the index. Each month, prices are collected in 75 urban areas across the country from about 6,000 housing units and approximately 22,000 retail establishments-department stores, supermarkets, hospitals, filling stations, and other types of stores and service establishments. The CPI is based on prices of food, clothing, shelter, and fuels, transportation fares, charges for doctors' and dentists' services, drugs, and the other goods and services that people buy for day-to-day living.

The CPI-U includes, in addition to wage earners and clerical workers, groups such as professional, managerial, and technical workers, the self-employed, short-term workers, the unemployed, and retirees and others not in the labor force. population and (2) a CPI for Urban Wage Earners and Clerical Workers (CPI-W) which covers approximately 29 percent of the total U.S.

The Bureau of Labor Statistics publishes CPIs for two population groups: (1) a CPI for All Urban Consumers (CPI-U) which covers approximately 93 percent of the total U.S. The Consumer Price Index (CPI) is a measures of the average change in prices over time in a fixed market basket of goods and services. While the CPI program attempted to collect as much data as possible, many indexes are based on smaller amounts of collected prices than usual, and a small number of indexes that are normally published were not published this month. These factors resulted in an increase in the number of prices considered temporarily unavailable and imputed. Additionally, data collection inВ August was affected by the temporary closing or limited operations of certain types of establishments. When possible, data normally collected by personal visit were collected either online or by phone. San Francisco-Oakland-Hayward, CA, CPI-U 2-month and 12-month percent changes, all items index, not seasonally adjusted MonthД¬oronavirus (COVID-19) Pandemic Impact on August 2021 Consumer Price Index DataДata collection by personal visit for the Consumer Price Index (CPI) program has been suspended since March 16, 2020. Components contributing to the increase included recreation (12.9 percent), new and used motor vehicles (12.8 percent, and shelter (0.7 percent). Over the year, the index for all items less food and energy increased 2.5 percent. Higher prices for household furnishings and operations (1.4 percent), recreation (1.0 percent), and shelter (0.4 percent) were partially offset by a lower price for medical care (-0.2 percent). The index for all items less food and energy advanced 0.2 percent in the latest two-month period. Prices paid for electricity rose 9.3 percent, and prices for natural gas service increased 1.9 percent during the past year. Prices for electricity moved up 0.5 percent over the past two months, and prices for natural gas service increased 0.4 percent for the same period.Д®nergy prices jumped 21.5 percent over the year, largely due to higher prices for gasoline (36.4 percent). The increase was mainly due to higher prices for gasoline (4.0 percent). The energy index rose 2.4 percent for the two months ending in August. Prices for food away from home advanced 4.5 percent over the past year. Prices for food at home rose 5.7 percent, strongly influenced by higher prices for meats, poultry, fish, and eggs (10.3 percent). Over the year, food prices rose 5.1 percent. Prices for food away from home advanced 0.9 percent for the same period.

(See table 1.) Prices for food at home rose 3.0 percent mainly due to an increase in the prices for other food at home (7.1 percent). Food prices rose 2.0 percent for the two months ending in August.

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