This is an all-in-one version of my S&P Composite 10-Year PE chart. Note that I found the updated data on Shiller's site, so this one goes up through April of 2003.
The interesting thing is, as of April the 10-Year PE was between 20 and 22, which puts it within less than one standard deviation of its 120+ year mean.
Market Data 
Markets 
AI
