That's a super graph, Jason.
Sahr's homepage has some other neat stuff too. I like the price of gasoline chart. It shows that, in inflation-adjusted terms, gas is cheaper now than it was in 1970.
And to think, some people worry about the supply running dry.
I've looked at all of Sahr's graphs several times over. Lots of interesting stuff there. By the way, I personally requested by email that he create a graph for GOLD, and he responded by posting
THIS so you have he and I to thank for the gold graph. He got the raw data from kitco.com.