Quote out of the user guide:

"2.
# Clicking one of the column header bars will sort the search results by the criterion in that column.
PC users: Right-click a column header to add or remove a column.
There are nine default column categories:
Quality - Ranking of up to four (4) stars
# - Number of identical files found for that one result
License - License type for file
? - File Type Icon
Name - Name of file
Type - Type of file
Size - Size of file (kilobytes)
Speed - Reported host connection type. Speeds in green are more likely to be accurate.
Bitrate - Sampling rate (audio files only).

Adding the number of files in the "#" column and assuming those files with no number under the "#" column are only once available will add up to the number displayed in the "tab-bar" of the search.

But thanks anyway for your useful comment


Edit:
Something I forgot to mention; searching under "All Types" and switching after the search to "Audio" will of course display only the audio files (15/1000); i.e 15 audio files with those key words searched for out of 1000 files of all types.
Well, and that's of course not mentioned in the user guide out of the same reason they didn't mention to switch the computer on when trying to use LW !!

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