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Robert

Historical gas prices.

Robert

BTW, if you look at that link, you can see why the graphic used those dates on the horizontal axis.

Kaiser

Thanks Robert for the data source. I think it confirms that they were plotting weekly gas prices; the point that using generic "week 1", "week 2" etc. labels would have improved readability is still valid, I believe.

Robert

Those are prices on the reported day, not average prices for a week. From the EIA: "Every Monday, retail prices for all three grades of gasoline are collected by telephone from a sample of approximately 900 retail gasoline outlets. [...] The reported price includes all taxes and is the pump price paid by a consumer as of 8:00 A.M. Monday."

Tom

I think the use of dates is reasonable, and likely to be of more use than 'week 1' etc.

The main problem is, I think, the fact that the caption is making a comparison to a year previously, but the graph covers only 3 months. In fact, the caption suggests that there had been a drop in prices prior to January, but the graph hides this.

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