Orange County, California Auction Selling Prices

[Jefferson Kim]

There seems to be a list of "Real Properties Sold" on the OC website: 

http://ocgov.com/gov/pa/div/realproperty/auctions/...

Does anyone know if this is comprehensive, or only a selection?
The frequency of sales seems kind of low.

Also, a sloppy analysis comparing "Sales Prices" (which I believe is the winning bid) with the retail price seems to indicate that the discount for many of these homes seems relatively low:

https://docs.google.com/spreadsheets/d/1Gta1Q8JMFC...

I'm probably wayyyyyyy late to the game at this point, which may explain why the auction market competition is so fierce. Is my data and analysis inaccurate?