Although the monthly dividends yield 11.2%, fully 28% of that is a return of your own capital, up from zero in January 2012.

FORBES: Cast A Wide Net For Yield

The monthly chart of the 30-year T-Bond goes back to 1995, when the yield peaked at 8.07%.

FORBES: Keep Your Eye on Treasury Rates

The other metric that we follow very closely is credit spreads, and this is the difference between the yield between the sub-investment-grade bonds and the ten-year Treasuries, where the recent monthly returns in the stock market is favorable, when credit spreads are normal, compared to when spreads are very wide.

FORBES: How Moving Averages Gauge Index Strength