Unfortunately, the data on housing is sparse, and even sparser from the past. Dataquick only started keeping data in 1988, and the NAR doesn’t even publish inventory data. Nobody is giving out data on loans, debt to income, etc., that I have ever seen. Some companies like First American Real Estate Solutions track this themselves, but they use it for their own purpose, and sell it for risk modeling. The media still relies on median as a way to gauge prices, and we know that it’s a fairly inaccurate.