FRED Economic Data
Browse U.S. economic series and source notes.
What it is
Browse U.S. economic series and source notes. The GDP series page lists frequency, units, seasonal adjustment, and source agency.
Why it is selected
Series metadata helps distinguish otherwise similar measures before comparison.
Who it suits and when to use it
Useful for economics classes and analysis; record the series code when citing.
Usage note
The series page was read; CSV download and chart transformations were not tested.