That graph is not inflation-adjusted and basically says to avoid using it like this in the description:

> Average prices are best used to measure the price level in a particular month, not to measure price change over time. It is more appropriate to use CPI index values for the particular item categories to measure price change.

I’m not doubting that (inflation-adjusted) energy prices have gone up but this graph is misleading to represent it

FRED actually has a blog post about how you would go about calculating an inflation-adjusted priced graph here: https://fredblog.stlouisfed.org/2022/11/fred-gets-real-unles...