Real gross domestic product (GDP) increased at an annual rate of 1.6 percent in the first quarter of 2024 (table 1), according to the "advance" estimate released by the Bureau of Economic Analysis. In the fourth quarter of 2023, real GDP increased 3.4 percent. The GDP estimate released today is based on source data that are incomplete or subject to further revision by the source agency (refer to “Source Data for the Advance Estimate” on page 3). The “second” estimate for the first quarter, based on more complete source data, will be released on May 30, 2024.