The Consumer Price Index for All Urban Consumers (CPI-U) in the Midwest rose 0.4 percent in May, the U.S. Bureau of Labor Statistics reported today. The monthly increase was led by higher prices for motor fuel. Overall, energy costs advanced 4.3 percent over the month. The indexes for food (-0.1 percent) and all items less food and energy (0.1 percent) registered little movement over the month.

The CPI-U for the Midwest declined 0.8 percent from May 2014 to May 2015. Food prices increased 1.2 percent and the energy index, which includes motor fuel and household fuels, fell 18.7 percent. Excluding food and energy, the CPI-U rose 1.2 percent over the year. (See chart 1.)

Food

Food prices in the Midwest were little changed (-0.1 percent) in May. The index for food at home was down 0.2 percent while costs for food away from home registered little movement (0.1 percent).  

From May 2014 to May 2015, the index for food was up 1.2 percent led by a 3.1-percent rise in costs for food away from home. Prices for food at home were virtually unchanged over the year (0.1 percent).

Energy

The energy index for the Midwest advanced 4.3 percent in May following a 1.1-percent decline in the previous month. The rise was largely attributable to an 8.5-percent jump in motor fuel prices. Costs for electricity rose 1.4 percent while prices for utility (piped) gas service were 1.8 percent lower over the month.

Despite the monthly increase, the index for energy fell 18.7 percent from May 2014 to May 2015, led by a 27.8-percent drop in motor fuel prices. Costs for utility (piped) gas service were 25.0 percent lower over the year, while electricity prices advanced 4.4 percent.

All items less food and energy

The index for all items less food and energy for the Midwest registered little movement (0.1 percent) in May due to offsetting movements. Expenditure categories registering higher prices over the month included shelter (0.2 percent) and used cars and trucks (0.7 percent). In contrast, apparel (-0.9 percent) and education and communication (-0.3 percent) were among the expenditure categories posting lower prices over the month.

The index for all items less food and energy increased 1.2 percent from May 2014 to May 2015. Higher costs for shelter (2.2 percent) and medical care (2.7 percent) led the advance.

The Midwest Consumer Price Index for All Urban Consumers (CPI-U) stood at 224.732 in May 2015. A typical market basket of goods and services that cost $100.00 in the 1982-84 base period cost $224.73 in May 2015. Because regional CPI data are not adjusted for seasonal price variation, consumers and businesses should be cautious in drawing conclusions about long-term retail price trends from short-term changes in the regional indexes.

CPI-W

In May, the Midwest Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W) was 219.773, up 0.5 percent over the month. The CPI-W decreased 1.4 percent over the year.

Table A. Midwest region CPI-U 1-month and 12-month percent changes, all items index, not seasonally adjusted

Month	2011		2012		2013		2014		2015
	1-month	12-month	1-month	12-month	1-month	12-month	1-month	12-month	1-month	12-month
January	0.5	1.9	0.6	2.8	0.1	1.3	0.5	1.4	-0.6	-0.3
February	0.3	2.2	0.2	2.7	1.1	2.2	0.6	0.9	0.3	-0.5
March	0.9	2.7	1.0	2.8	0.2	1.4	0.9	1.5	0.6	-0.9
April	0.7	3.3	0.2	2.3	-0.1	1.2	0.3	1.9	0.1	-1.1
May	0.6	3.8	-0.1	1.5	0.5	1.8	0.2	1.6	0.4	-0.8
June	0.0	3.9	-0.1	1.4	0.3	2.2	0.5	1.7
July	0.1	3.8	0.0	1.3	-0.4	1.8	-0.3	1.8
August	0.2	3.8	0.7	1.8	0.1	1.2	-0.2	1.6
September	0.2	3.9	0.3	1.9	0.1	1.0	0.1	1.6
October	-0.6	3.3	-0.3	2.2	-0.5	0.8	-0.5	1.6
November	0.0	3.3	-0.4	1.8	-0.2	1.0	-0.6	1.2
December	-0.2	2.8	-0.2	1.8	-0.2	1.0	-0.7	0.7

The June 2015 Consumer Price Index for the Midwest region is scheduled to be released on Friday, July 17, 2015.

Technical Note

The Consumer Price Index (CPI) is a measure of the average change in prices over time in a fixed market basket of goods and services. The Bureau of Labor Statistics publishes CPIs for two population groups: (1) a CPI for All Urban Consumers (CPI-U) which covers approximately 89 percent of the total population and (2) a CPI for Urban Wage Earners and Clerical Workers (CPI-W) which covers approximately 28 percent of the total population. 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.

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. Each month, prices are collected in 87 urban areas across the country from about 6,000 housing units and approximately 24,000 retail establishments--department stores, supermarkets, hospitals, filling stations, and other types of stores and service establishments. All taxes directly associated with the purchase and use of items are included in the index.

The index measures price changes from a designated reference date (1982-84) that equals 100.0. An increase of 16.5 percent, for example, is shown as 116.5. This change can also be expressed in dollars as follows: the price of a base period "market basket" of goods and services in the CPI has risen from $10 in 1982-84 to $11.65. For further details see the CPI home page on the Internet at www.bls.gov/cpi and the BLS Handbook of Methods, Chapter 17, The Consumer Price Index, available on the Internet at www.bls.gov/opub/hom/cpi/.

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. Local data are then combined to obtain a U.S. city average. 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. In addition, local indexes are not adjusted for seasonal influences. As a result, local area indexes show greater volatility than the national index, although their long-term trends are quite similar. NOTE: Area indexes do not measure differences in the level of prices between areas; they only measure the average change in prices for each area since the base period.

The Midwest region is comprised of Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Ohio, South Dakota, and Wisconsin.

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