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19-6-CHI
Friday, January 11, 2019

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Consumer Price Index, Chicago-Naperville-Elgin — December 2018

Local prices up 1.1 percent over the year

The Consumer Price Index for All Urban Consumers (CPI-U) in the Chicago-Naperville-Elgin area decreased 0.3 percent in December, the U.S. Bureau of Labor Statistics reported today. Assistant Commissioner for Regional Operations Charlene Peiffer noted that food prices rose 0.2 percent and the energy index decreased 3.6 percent in December. The all items less food and energy index declined 0.1 percent over the month. Within the all items less food and energy category, prices were lower for apparel and other goods and services over the month, whereas prices rose for recreation and household furnishings and operations. (Data in this report are not seasonally adjusted. Accordingly, month-to-month changes may reflect the impact of seasonal influences.)

Over the last 12 months, the Chicago area all items CPI-U increased 1.1 percent. (See chart 1 and table A.) Over the year, the energy index fell 6.6 percent. The decline in the energy index was primarily due to lower gasoline prices. The food index and the all items less food and energy index rose 1.8 percent and 1.6 percent, respectively, over the year. (See table 1.)

Food

Food prices rose 0.2 percent in December. Of the two components within the food index, prices for food at home (groceries) were unchanged, while prices for food away from home (restaurant, cafeteria, and vending purchases) increased 0.3 percent. Within the food at home group, indexes were higher in December for tomatoes, chicken, and ham. Prices were lower for snacks; frozen fruits and vegetables; and other processed fruits and vegetables including dried.

From December 2017 to December 2018, the food index increased 1.8 percent. Over the year, grocery prices declined 0.3 percent, while costs for food away from home rose 4.4 percent.

Energy

The energy index decreased 3.6 percent in December. During the same period, gasoline prices declined 9.0 percent. In December, electricity costs were unchanged and utility (piped) gas service costs rose 5.7 percent.

Over the year, the Chicago area energy index fell 6.6 percent. From December 2017 to December 2018, gasoline prices and electricity prices fell 13.0 percent and 1.2 percent, respectively. Utility (piped) gas service costs increased 2.5 percent over the year.

All items less food and energy

The index for all items less food and energy declined 0.1 percent in December. Among the index’s components, prices were lower for apparel (-2.5 percent) and other goods and services (-1.7 percent), but higher for recreation (1.1 percent) and household furnishings and operations (1.5 percent).

Over the year, the index for all items less food and energy rose 1.6 percent. Increases in the indexes for shelter (3.6 percent) and medical care (1.4 percent) over the year were contributing factors.

Table A. Chicago-Naperville-Elgin, IL-IN-WI, CPI-U 1-month and 12-month percent changes, all items index, not seasonally adjusted
Month20142015201620172018
1-month12-month1-month12-month1-month12-month1-month12-month1-month12-month

January

0.91.2-0.20.40.80.90.71.80.81.8

February

0.50.70.0-0.2-0.20.70.12.20.01.6

March

1.11.90.7-0.60.10.2-0.12.00.01.8

April

0.52.40.1-0.90.60.70.41.70.72.1

May

-0.11.80.3-0.50.00.30.21.80.42.3

June

0.42.00.2-0.70.50.70.01.3-0.22.2

July

-0.41.9-0.1-0.5-0.8-0.10.02.2-0.31.9

August

0.11.90.4-0.10.2-0.20.32.30.11.7

September

0.02.1-0.3-0.40.60.60.42.10.41.6

October

-0.42.0-0.1-0.20.10.8-0.41.60.02.0

November

-0.81.6-0.40.20.21.50.41.8-0.61.0

December

-0.41.5-0.60.0-0.21.9-0.41.7-0.31.1

The January 2019 Consumer Price Index for Chicago is scheduled to be released on Wednesday, February 13, 2019.


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 93 percent of the total population and (2) a CPI for Urban Wage Earners and Clerical Workers (CPI-W) which covers approximately 29 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 75 urban areas across the country from about 5,000 housing units and approximately 22,000 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/pdf/homch17.pdf.

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 cities; they only measure the average change in prices for each area since the base period.

The Chicago-Naperville-Elgin, Ill.-Ind.-Wis., Core Based Statistical Area covered in this release is comprised of Cook, DeKalb, DuPage, Grundy, Kane, Kendall, Lake, McHenry, and Will Counties in Illinois; Jasper, Lake, Newton, and Porter Counties in Indiana; and Kenosha County in Wisconsin.

Information in this release will be made available to sensory impaired individuals upon request. Voice phone: (202) 691-5200; Federal Relay Service: (800) 877-8339.

Table 1. Consumer Price Index for All Urban Consumers (CPI-U): Indexes and percent changes for selected periods
Chicago-Naperville-Elgin, IL-IN-WI (1982-84=100 unless otherwise noted)
Item and Group

IndexesPercent change from-
Oct.
2018
Nov.
2018
Dec.
2018
Dec.
2017
Oct.
2018
Nov.
2018

Expenditure category

All items

238.892237.511236.7961.1-0.9-0.3

All items (1967=100)

713.710709.583707.446---

Food and beverages

250.316249.430249.7651.9-0.20.1

Food

249.421248.560248.9441.8-0.20.2

Food at home

235.493233.710233.684-0.3-0.80.0

Cereals and bakery products

264.072262.931259.6402.2-1.7-1.3

Meats, poultry, fish and eggs

251.294249.317249.942-1.3-0.50.3

Dairy and related products

210.010207.163208.4310.1-0.80.6

Fruits and vegetables

312.676311.407311.582-2.5-0.30.1

Nonalcoholic beverages and beverage materials(1)

189.844186.143188.7094.0-0.61.4

Other food at home

189.086188.214187.363-0.7-0.9-0.5

Food away from home

263.823264.147265.0494.40.50.3

Alcoholic beverages

261.928260.660260.2122.4-0.7-0.2

Housing

248.747249.225250.1663.00.60.4

Shelter

314.802315.856316.0873.60.40.1

Rent of primary residence(2)

333.905335.604336.4952.90.80.3

Owners' equiv. rent of residences(2)(3)

321.659322.748324.0894.20.80.4

Owners' equiv. rent of primary residence(2)(3)

321.659322.748324.0894.20.80.4

Fuels and utilities

204.156204.979208.6551.02.21.8

Household energy

158.829159.619163.3500.42.82.3

Energy services(2)

161.864162.798166.6120.42.92.3

Electricity(2)

157.797157.904157.902-1.20.10.0

Utility (piped) gas service(2)

154.388156.437165.4322.57.25.7

Household furnishings and operations

90.03888.90490.2620.60.21.5

Apparel

86.77483.30181.197-4.4-6.4-2.5

Transportation

188.820183.765178.453-2.2-5.5-2.9

Private transportation

185.449179.788174.985-3.1-5.6-2.7

New and used motor vehicles(4)

95.15296.21895.459-1.10.3-0.8

New vehicles(1)

171.120173.737172.484-1.60.8-0.7

Used cars and trucks(1)

260.902263.433263.5300.81.00.0

Motor fuel

256.862224.447204.212-12.9-20.5-9.0

Gasoline (all types)

254.156221.888201.810-13.0-20.6-9.0

Gasoline, unleaded regular(5)

244.932213.248193.675-12.9-20.9-9.2

Gasoline, unleaded midgrade(5)(6)

280.546248.018227.201-12.5-19.0-8.4

Gasoline, unleaded premium(5)

276.642248.023228.621-11.8-17.4-7.8

Motor vehicle insurance(1)

555.038555.038554.4353.9-0.1-0.1

Medical care

506.167505.134505.9701.40.00.2

Recreation(4)

110.695110.265111.485-0.30.71.1

Education and communication(4)

142.695141.669141.704-1.5-0.70.0

Tuition, other school fees, and childcare(1)

1,173.2041,174.1191,175.348-0.60.20.1

Other goods and services

396.898399.515392.8950.4-1.0-1.7

Commodity and service group

All items

238.892237.511236.7961.1-0.9-0.3

Commodities

168.361165.228163.869-1.4-2.7-0.8

Commodities less food and beverages

127.340123.704121.885-3.5-4.3-1.5

Nondurables less food and beverages

175.319166.215161.024-4.9-8.2-3.1

Durables

84.24784.66485.311-1.51.30.8

Services

305.912306.273306.2002.40.10.0

Special aggregate indexes

All items less medical care

227.421226.023225.2391.0-1.0-0.3

All items less shelter

213.241211.004209.956-0.2-1.5-0.5

Commodities less food

132.000128.354126.534-3.3-4.1-1.4

Nondurables

213.537207.908205.078-1.3-4.0-1.4

Nondurables less food

181.033172.185167.153-4.5-7.7-2.9

Services less rent of shelter(3)

312.213311.860311.4551.1-0.2-0.1

Services less medical care services

291.363291.748291.6202.60.10.0

Energy

197.680184.213177.589-6.6-10.2-3.6

All items less energy

244.768244.519244.3581.6-0.2-0.1

All items less food and energy

244.798244.647244.3971.6-0.2-0.1

Footnotes
(1) Index on a December 1977=100 base.
(2) This index series was calculated using a Laspeyres estimator. All other item stratum index series were calculated using a geometric means estimator.
(3) Index on a December 1982=100 base.
(4) Indexes on a December 1997=100 base.
(5) Special index based on a substantially smaller sample.
(6) Index on a December 1993=100 base.

- Data not available.
Note: Index applies to a month as a whole, not to any specific date. Data not seasonally adjusted.

 

Last Modified Date: Friday, January 11, 2019