What does this number mean

[Charity50]

The following shows up on my Mac Powerbook G4 laptop.
At the top of the search results window, there is a blue bar with a red dot on the left side, then to the right of it is the name of what I searched for, and to the right of that are numbers that increase as the search continues.

I cannot find anywhere in the manual what those numbers mean. If they are for the number of the requested item found, those numbers never correspond with the results that shows up in the window below them.

What do those numbers mean?
Thank you for answering.