[nsmart]

http://ftalphaville.ft.com/blog/2007/11/07/8713/the-dollars-slide-13-down-and-falling-faster/

Here is a chart of the dollar’s buying power since the 1970’s.

[Toddsterpatriot]

Here is a chart of the dollar’s buying power since the 1970’s.

That's not buying power, that's conversion rate.