I was thinking along the lines of maybe a government statistic website, or an article or quote by a local state housing official.
My point is that it would be unusual for ALL the loans to be from GinnyMae or FreddicMac.
You're right, not all the loans are guaranteed directly. But if you understand the way the various federal agencies and quasi agencies are structured, that should not cause you to feel any relief.
Given your earlier nastiness, I don't feel like it's a productive use of my time to educate you any further.