Transmission of material in this release is embargoed until 8:30 a.m. (ET) Wednesday, May 15, 2024.

The given document provides a table showing the Consumer Price Index (CPI) for various expenditure categories in the U.S. city average for April 2024. The table includes information on the relative importance of each category, the 12-month percent change, the unadjusted effect on all items, and the largest or smallest unadjusted change since a specific date. The categories include communication, information and information processing, information technology, hardware and services, recreation, video and audio, pets, pet products and services, photography, food and beverages, domestically produced farm food, other services, apparel less footwear, fuels and utilities, household energy, medical care, transportation, private transportation, new and used motor vehicles, utilities and public transportation, household furnishings and operations, other goods and services, and personal care. The document also explains the concept of "effect" as a measure of an item's contribution to the overall price change, and the margin of error for statistics. The indexes are based on different base years. [Extracted from the article]