These are seasonally adjusted, annualized results. This means taking a snapshot of the quarterly activity and projecting it for the full year.
The C, I, X-M, and G were added by the Wikipedia editor. Various time periods can be selected from the source report.
A negative X-M means there is a trade deficit, where imports exceed exports.
More detail on how the U.S. defines its GDP components (national product accounts) can be found here: BEA-GDP Concept Primers
Date
Source
U.S. Bureau of Economic Analysis
Author
United States Department of Commerce
This PNG image was uploaded in a graphics format such as GIF, PNG, JPEG, or SVG. However, it consists purely or largely of information which is better suited to representation in wikitext (possibly using MediaWiki's special syntax for tables, math, or music). This will make the information easier to edit, as well as make it accessible to users of screen readers and text-based browsers.
If possible, please replace any inclusions of this image in articles (noted under the “File links” header) with properly formatted wikitext. After doing so, please consider nominating this image for deletion.
(Original text) : {{Information |Description = GDP Categories - United States |Source = U.S. Bureau of Economic Analysis |Date = ~~~~~ |Author = Farcaster |Permission = |other_versions = }}