12-month percentage of change in the U.S. CPI-U, by expenditure category 2021

In April 2021, gasoline prices were around 49.6 percent higher than in April 2020. The data represents city averages in the United States. The defined base period is: 1982-84=100. CPI is defined by the United States Bureau of Labor Statistics as "a measure of the average change over time in the prices paid by urban consumers for a market basket of consumer goods and services". It is based on prices of food, clothing, shelter, fuels, transportation fares, charges for doctors’ and dentists’ services, drugs, and other goods and services that people buy for day-to-day living.

The annual inflation rate in the U.S. since 1990 can be accessed here.