Of course you should probably work on getting some other funding sources , in case statists really do regulate wholesaling out of existence (like some are obviously praying for).   

Does anybody have the statistics on how many REO/ Bank owned properties are there in the US, broken down by state/ county?

I think statistically they have the highest passing rates of the exams as well.

Even if the claim is valid they will generally deny the first time paying out and make you work for it as they know statistically some of their customers filing a claim will quit the process if they make it hard on them to be successful.The insurance industry  is for profit and they will try almost anything within the law to make a buck.

The statistics office of the university say that the main campus had 58,663 for fall of 2015.  

Because of the size of the Chicagoland area, statistically, you have a better chance of finding an investment property in this area than going down state.  

Public official such as court clerks are there to serve the public with archive access to specific case files or, in some cases, demographic and health statistical metrics.

Statistically DM response is 3% average depending on the list you use that can be higher or lower.

Places to find that information would be the Census Bureau, The Bureau of labor and Statistics, The Milken Report and the Glenn Mueller Market Cycle Monitor.

You have a huge pool of properties to draw statistics from so I certainly appreciate your experience.