PSA Numbers From the Last Few Weeks

I'm interested in tracking PSA numbers for Kellogg's cards.  Here is what I've found for February 19th and March 3rd. 

Why am I doing this?   I want to see if there are any spikes since I don't really track this much since I've still never sent a card to PSA.

Does anyone have any history or is this readily available and am I wasting my time with this?

What about the other grading services?  I may check that some other time.