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How to Look at Historical Data and Price Charts
The s and p 500, for example, has seen such large changes in sector waitings over the years that looking at prior returns is tricky. Energy was 20 % of the index in the eighties. Now it's four%. C p i in 19 74 was 25 %. Food is 13 %. Inflation was huge in the early seventies, 15 %. Is eneryoupi some of the same problems now? But just looking at headline data misses some of the storye,. so we talk about this all the time.