You know what you wouldn't think would be hard to find...

A list of best selling young adult books by year.

That is to say, not the best selling young adult books of all time, or the best selling young adult books right now. Which are all I can find after trying a handful of different variations on search terms.

But say I wanted to know what the young'uns of 1986 or 1987 were most likely to be reading, which in fact I do.

Oh, and a couple of sites gave me the Newberry and Caldecott award-winners, which is nice but tends to be the books librarians thought we should be reading, not always the ones we were.

Any ideas?