[toado85]

Since so many people suggested it should include dividends and dividend reinvestment, I added that in, based on this chart: http://www.multpl.com/s-p-500-dividend-yield/table - as expected, it makes a huge difference if you go back a ways. (I had no idea dividends were so much larger in the 50s-80s). There's a toggle button to see with and without. Thanks again for the feedback!