September 2012 Consumer Price Index

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The Consumer Price Index for All Urban Consumers (CPI-U) increased 0.6 percent in September on a seasonally adjusted basis, the U.S. Bureau of Labor Statistics reported today. Over the last 12 months, the all items index increased 2.0 percent before seasonal adjustment.

For the second month in a row, the substantial increase in the all items index was mostly the result of an increase in the gasoline index, which rose 7.0 percent in September after increasing 9.0 percent in August. The other major energy indexes increased in September as well.

The food index increased 0.1 percent in September; the index for food at home was unchanged as major grocery store food indexes continue to be mixed. The index for all items less food and energy rose 0.1 percent for the third month in a row. Indexes for shelter, medical care, apparel, and airline fares were among those that increased, while the indexes for used cars and trucks, new vehicles, personal care, and household furnishings and operations all declined.

The 12-month change in the index for all items was 2.0 percent in September, an increase from the August figure of 1.7 percent and the highest since April. The index for all items less food and energy also rose 2.0 percent for the 12 months ending September; the food index has increased 1.6 percent and the energy index has risen 2.3 percent over that span.

Seasonally adjusted changes from preceding month Un- adjusted 12-mos. Mar. Apr. May June July Aug. Sep. ended 2012 2012 2012 2012 2012 2012 2012 Sep. 2012

Consumer Price Index Data for September 2012

Food

The food index rose 0.1 percent in September after a 0.2 percent increase in August. The index for food at home was unchanged in September after rising 0.1 percent the previous month. Among major grocery store food groups, the largest increase in September was in the index for nonalcoholic beverages, which rose 0.9 percent in September after declining in July and August. The indexes for dairy and related products and for other food at home also rose in September. The largest decline was for the index for meats, poultry, fish, and eggs, which fell 0.6 percent after rising in each of the three previous months. Also declining was the index for fruits and vegetables, which fell 0.4 percent as the fresh fruits index declined 0.9 percent. The index for cereals and bakery products fell 0.1 percent. The index for food at home has risen 0.8 percent over the last 12 months, the smallest figure since August 2010. The index for food away from home increased 0.2 percent in September and has risen 2.8 percent over the last 12 months.

Energy

The energy index rose 4.5 percent in September after a 5.6 percent increase in August. The gasoline index increased 7.0 percent in September, its third straight increase. (Before seasonal adjustment, gasoline prices increased 4.1 percent in September.) Other energy indexes had increases similar to August: The fuel oil index increased 4.1 percent in September after rising 4.6 percent in August; the index for natural gas rose 2.0 percent in September following a 2.8 percent August increase; and the electricity index repeated its August increase of 0.2 percent. Over the last 12 months, the energy index has risen 2.3 percent (the August 12-month change was a 0.6 percent decline). The gasoline index has risen 6.8 percent over the last 12 months, and the index for fuel oil has increased 4.0 percent. In contrast, the index for natural gas has fallen 10.7 percent and the electricity index has declined 1.5 percent.

All items less food and energy

The index for all items less food and energy increased 0.1 percent in September, the same increase as in July and August. The index for shelter repeated its August increase of 0.2 percent, with the rent index rising 0.3 percent and the index for owners' equivalent rent increasing 0.2 percent. The medical care index rose 0.3 percent in September, with the hospital services index rising 0.6 percent. The index for airline fares rose 1.4 percent in September after declining in each of the three previous months. The apparel index turned up in September, rising 0.3 percent after declining 0.5 percent in August. Similarly, the tobacco index rose 0.2 percent in September after an August decline. In contrast to these increases, the index for used cars and trucks posted its largest decline since February 2009, falling 1.4 percent. The index for new vehicles turned down in September, decreasing 0.1 percent after increasing 0.2 percent in August. The indexes for household furnishings and operations and personal care also declined in September.

The index for all items less food and energy has risen 2.0 percent over the last 12 months, a slight increase from the August figure of 1.9 percent. The index for medical care has risen 4.1 percent over that span, the apparel index has increased 2.7 percent and the shelter index rose 2.2 percent. The index for airline fares declined 2.6 percent over the last 12 months and the index for used cars and trucks fell 1.6 percent.

Not seasonally adjusted CPI measures

The Consumer Price Index for All Urban Consumers (CPI-U) increased 2.0 percent over the last 12 months to an index level of 231.407 (1982-84=100). For the month, the index increased 0.4 percent prior to seasonal adjustment.

The Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W) increased 2.0 percent over the last 12 months to an index level of 228.184 (1982-84=100). For the month, the index increased 0.5 percent prior to seasonal adjustment.

The Chained Consumer Price Index for All Urban Consumers (C-CPI-U) increased 1.7 percent over the last 12 months. For the month, the index increased 0.4 percent on a not seasonally adjusted basis. Please note that the indexes for the post-2010 period are subject to revision.

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