Ok, so here’s the median income chart, not to be confused with the median household income chart, below. I stopped at 2005 because I’m unclear about the 2006 figure, available in a separate table ($30,428 would seem to be too high a jump, but maybe not).

As indicated in the comments, if there is a burger-flipping army invading U.S. households, that could explain the rise in median household income but would probably drag down median personal income. Let’s see if that’s the case:

us-median-income-1974-2005.jpg

Nope, doesn’t look like it. But maybe the burger flipping army is really raking it in these days. Hey, and this might be evidence!

More income and info and useful charts are available here.