The 11-year sunspot cycle "supposedly" has some close correlations to the stock market, economic advances and recessions. Periods of high mass excitability in general.
Out of curiosity I plotted monthly sunspot activity (from 1942 in red), the DJIA (dark Blue), and the 52-Month ROC of the Dow (light blue).
The graph is as of 11/18/08 What do you think?
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