The trace shows an individual scan..  16 scans are averaged for each fid .
Note the popup Info window.  The experiment number means that 8 complete fids have already been accumulated.
As soon as 1 complete fid is accumulated, you can read the first serial file and transform it.
The amount of time remaining in the total acquisition is also given.
NB! Do not leave the acquisition window open to this display for an extended period.