SP500 - Comparing 1991/2000 and 2009/201(7)

FX:SPX500   S&P 500 Index
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In big logarithmic picture, the probably important trend set in the early 90' could be an important guide/target in a few years.

This guide climbs at 8.50% which over a long period of time is slightly higher than the commonly retained figure of 7%.