Can you help me find this Grateful Dead "Quote"?

I saw something like this emblazoned on a Grateful Dead t-shirt: 3,000 shows, 500 songs, 11 band members, 1 band. It was more detailed and factual, though, and I need it as a fact/citation for a paper. Really, a speech for my Public Speaking class.

Yes, I get to write a paper about the Grateful Dead for college!