Found in 3 comments on Hacker News
Yep, this time is different [1].

In all seriousness, if you really believe this, I suggest you pick up a copy of that book. History doesn't repeat itself, but it does rhyme, and you'd be surprised just how similar this time is.

[1] http://www.amazon.com/This-Time-Different-Centuries-Financia...

j_baker · 2013-04-16 · Original thread
http://www.amazon.com/This-Time-Different-Centuries-Financia...

I don't know about the particular stat the article is talking about, but they give plenty of data here.

jellicle · 2013-04-03 · Original thread
This Time Is Different: Eight Centuries of Financial Folly

"Throughout history, rich and poor countries alike have been lending, borrowing, crashing--and recovering--their way through an extraordinary range of financial crises. Each time, the experts have chimed, "this time is different"--claiming that the old rules of valuation no longer apply and that the new situation bears little similarity to past disasters."

http://www.amazon.com/This-Time-Different-Centuries-Financia...

In paperback, get yours today.