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News Release Information

21-8-CHI
Wednesday, January 13, 2021

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Technical information:
Media contact:
  • (312) 353-1138

Consumer Price Index, Detroit-Warren-Dearborn — December 2020

Area prices were down 0.3 percent over the past two months, up 0.7 percent from a year ago

Prices in the Detroit-Warren-Dearborn area, as measured by the Consumer Price Index for All Urban Consumers (CPI-U), decreased 0.3 percent for the two months ending in December 2020, the U.S. Bureau of Labor Statistics reported today. Regional Commissioner Jason Palmer noted that food prices decreased 0.4 percent, and the energy index declined 1.8 percent from October to December. The all items less food and energy index fell 0.2 percent over the past two months due to declines in the indexes for apparel, household furnishings and operations, and medical care. (Data in this report are not seasonally adjusted. Accordingly, bi-monthly changes may reflect seasonal influences.)

Over the last 12 months, the CPI-U advanced 0.7 percent. (See chart 1 and table A.) The index for all items less food and energy increased 1.3 percent over the year. Food prices were up 0.2 percent. Energy prices declined 6.0 percent, largely the result of a decrease in the price of gasoline. (See table 1.)

Food

Food prices declined 0.4 percent for the two months ending in December. Prices for food at home (groceries) fell 1.5 percent, and prices for food away from home (restaurant, cafeteria, and vending purchases) increased 0.9 percent for the same period.

Over the year, food prices increased 0.2 percent. Prices for food at home rose 1.8 percent since a year ago, and prices for food away from home decreased 1.7 percent.

Energy

The energy index decreased 1.8 percent for the two months ending in December. The decrease was mainly due to lower electricity prices (-4.4 percent). Gasoline prices fell 0.2 percent, and prices for utility (piped) gas service declined 0.5 percent for the same period.

Energy prices fell 6.0 percent over the year, largely due to lower gasoline prices (-19.5 percent). Prices paid for utility (piped) gas service advanced 8.9 percent, and prices for electricity rose 5.0 percent during the past year.

All items less food and energy

The index for all items less food and energy was down 0.2 percent in the latest two-month period. Lower prices for apparel (-5.9 percent), household furnishings and operations (-2.5 percent), and medical care (-0.7 percent) were partially offset by higher prices for shelter (0.9 percent) and recreation (1.9 percent).

Over the year, the index for all items less food and energy increased 1.3 percent. Components contributing to the increase included motor vehicle insurance (4.5 percent), education and communication (2.4 percent), and medical care (1.5 percent). Partly offsetting the increases were lower prices for apparel (-5.4 percent).

Table A. Detroit-Warren-Dearborn, MI, CPI-U 2-month and 12-month percent changes, all items index, not seasonally adjusted
Month 2016 2017 2018 2019 2020
2-month 12-month 2-month 12-month 2-month 12-month 2-month 12-month 2-month 12-month

February

0.3 0.9 0.9 3.0 0.3 2.1 0.4 1.2 0.5 2.6

April

1.4 1.1 0.7 2.3 0.9 2.3 0.6 1.0 -2.7 -0.8

June

1.2 2.3 0.0 1.1 1.3 3.6 0.4 0.1 1.7 0.5

August

-0.1 1.7 0.1 1.3 -0.6 2.8 0.6 1.4 1.9 1.8

October

0.2 1.7 0.9 2.0 0.0 1.9 1.0 2.4 -0.3 0.5

December

-0.6 2.4 0.1 2.7 -0.6 1.2 -0.6 2.5 -0.3 0.7

The February 2021 Consumer Price Index for the Detroit-Warren-Dearborn area is scheduled to be released on Wednesday, March 10, 2021.

Coronavirus (COVID-19) Pandemic Impact on December 2020 Consumer Price Index Data

Data collection by personal visit for the Consumer Price Index (CPI) program has been suspended since March 16, 2020. When possible, data normally collected by personal visit were collected either online or by phone. Additionally, data collection in December was affected by the temporary closing or limited operations of certain types of establishments. These factors resulted in an increase in the number of prices considered temporarily unavailable and imputed.

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. Additional information is available at www.bls.gov/covid19/effects-of-covid-19-pandemic-on-consumer-price-index.htm.   


Technical Note

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. 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. population and (2) a CPI for Urban Wage Earners and Clerical Workers (CPI-W) which covers approximately 29 percent of the total U.S. 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 6,000 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; for most of the CPI-U the reference base is 1982-84 equals 100. An increase of 7 percent from the reference base, for example, is shown as 107.000.  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. For further details see the CPI home page on the Internet at www.bls.gov/cpi and the CPI section of the BLS Handbook of Methods 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 cities; they only measure the average change in prices for each area since the base period.

The Detroit-Warren-Dearborn, MI, Core Based Statistical Area covered in this release is comprised of Lapeer, Livingston, Macomb, Oakland, St. Clair, and Wayne Counties in Michigan.

Information in this release will be made available to individuals with sensory impairments 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
Detroit-Warren-Dearborn, MI (1982-84=100 unless otherwise noted)
Item and Group

Indexes Percent change from-
Oct.
2020
Nov.
2020
Dec.
2020
Dec.
2019
Oct.
2020
Nov.
2020

Expenditure category

All items

239.922 - 239.089 0.7 -0.3 -

All items (1967=100)

713.147 - 710.671 - - -

Food and beverages

231.177 - 230.130 0.1 -0.5 -

Food

230.736 - 229.737 0.2 -0.4 -

Food at home

219.555 212.780 216.276 1.8 -1.5 1.6

Cereals and bakery products

266.768 - 264.917 -0.1 -0.7 -

Meats, poultry, fish and eggs

242.807 - 230.803 0.8 -4.9 -

Dairy and related products

169.154 - 155.559 -2.4 -8.0 -

Fruits and vegetables

226.376 - 225.085 -1.9 -0.6 -

Nonalcoholic beverages and beverage materials(1)

208.670 - 216.002 5.8 3.5 -

Other food at home

199.564 - 200.226 5.5 0.3 -

Food away from home

249.246 - 251.484 -1.7 0.9 -

Alcoholic beverages

231.137 - 229.564 -1.0 -0.7 -

Housing

229.928 - 230.113 1.1 0.1 -

Shelter

261.849 263.785 264.245 0.4 0.9 0.2

Rent of primary residence(2)

273.807 276.608 275.794 1.4 0.7 -0.3

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

261.776 262.953 261.831 0.0 0.0 -0.4

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

261.776 262.953 261.831 0.0 0.0 -0.4

Fuels and utilities

276.471 - 270.159 5.5 -2.3 -

Household energy

215.910 209.508 209.767 6.4 -2.8 0.1

Energy services(2)

218.130 211.602 211.821 6.5 -2.9 0.1

Electricity(2)

262.055 250.648 250.510 5.0 -4.4 -0.1

Utility (piped) gas service(2)

159.164 157.796 158.336 8.9 -0.5 0.3

Household furnishings and operations

123.364 - 120.273 1.5 -2.5 -

Apparel

108.534 - 102.177 -5.4 -5.9 -

Transportation

245.460 - 243.181 -0.1 -0.9 -

Private transportation

249.299 - 247.639 0.5 -0.7 -

New and used motor vehicles(4)

- - - - - -

New vehicles(1)

- - - - - -

Used cars and trucks(1)

321.601 - 312.573 10.3 -2.8 -

Motor fuel

186.980 178.202 186.623 -19.6 -0.2 4.7

Gasoline (all types)

185.909 177.021 185.475 -19.5 -0.2 4.8

Gasoline, unleaded regular(5)

185.578 176.744 185.013 -20.0 -0.3 4.7

Gasoline, unleaded midgrade(5)(6)

226.623 214.235 227.901 -17.1 0.6 6.4

Gasoline, unleaded premium(5)

208.606 198.975 208.944 -14.5 0.2 5.0

Motor vehicle insurance(1)

1,937.584 - 1,928.599 4.5 -0.5 -

Medical care

473.334 - 470.223 1.5 -0.7 -

Recreation(4)

112.438 - 114.610 0.8 1.9 -

Education and communication(4)

148.572 - 148.329 2.4 -0.2 -

Tuition, other school fees, and childcare(1)

1,330.714 - 1,330.357 0.6 0.0 -

Other goods and services

447.770 - 451.849 2.6 0.9 -

Commodity and service group

All items

239.922 - 239.089 0.7 -0.3 -

Commodities

177.117 - 175.300 -1.0 -1.0 -

Commodities less food and beverages

149.472 - 147.418 -1.7 -1.4 -

Nondurables less food and beverages

172.389 - 170.018 -6.7 -1.4 -

Durables

- - - - - -

Services

303.760 - 303.975 1.7 0.1 -

Special aggregate indexes

All items less medical care

230.358 - 229.623 0.6 -0.3 -

All items less shelter

234.394 - 232.362 0.8 -0.9 -

Commodities less food

152.433 - 150.387 -1.6 -1.3 -

Nondurables

201.460 - 199.744 -2.9 -0.9 -

Nondurables less food

176.281 - 173.971 -6.2 -1.3 -

Services less rent of shelter(3)

364.142 - 361.697 2.9 -0.7 -

Services less medical care services

292.064 - 292.439 1.5 0.1 -

Energy

207.277 199.690 203.592 -6.0 -1.8 2.0

All items less energy

245.887 - 245.269 1.1 -0.3 -

All items less food and energy

249.253 - 248.702 1.3 -0.2 -

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: Wednesday, January 13, 2021