I've seen numbers out there saying that the total number of applicants for UA or DL is in the neighborhood of 15,000 and AA is 16,000.
What I think would be useful information is, how many meet the hour requirements, are there any that have disqualified for other reasons, how many are applicants for all 3? What rate are new applications being submitted?
I know that there is no exact formula to getting called, but understanding the competition is helpful.
It also helps clear up if there really is a shortage. People have talked about the article where SkyWest's CEO said that the majors, FedEx/UPS, and LCC combined will need 18,000 pilots in the next three years. If there are 15,000 applications on file now and places like SkyWest and Envoy are hiring 50 to 100/month I'd imagine that you can find 1000 new applicants per year to add to that 16,000.