Why? Because that's the way it is.

Incorrect information. $0.20 in 1920 would be the equivalent to $2.98 today when adjusted for the rate of inflation. See below link:

https://www.in2013dollars.com/us/inflation/1920?amount=0.20

You all passed the Troll Test. The headline is that the cost of a gallon of gas is down, once again. This time it is below the cost of gas before the Invasion of Ukraine. The other stuff was fluff, I threw in, just to see where you would focus.

Gas pumps were first installed in1905. The following is the best answer I could find, from "Answers," online, concerning the cost of gas then:

"Gasoline as we know it was a waste product that long ago, automobile engines were run on kerosene. From my research I am pretty sure 1905 and thereafter is when gasoline was the fuel to run automobiles.

A relative told me that the price of gas in the early to mid 1900's was around 10 cents per gallon. "

Gas prices were depressed by COVID-19 related decrease in demand worldwide. They fell to about $2.20 per gallon. But gas topped out at over $6-a gallon or more after people got vaccinated in 2021 and Russia invaded. I should have written "1920s-2020s," but I thought most people would not split hairs. I was wrong. Some people will do anything to not admit that things are improving.

Your data is bogus.

If you had any morals you would delete it

Wow! Morals. Because of taking license and accepting the limits of my imprecise data, I will be judged using the most subjective standards of all. Morality.

"Morality, which is based on ideas or on an ideal is an unmitigated evil." D.H. Lawrence

Yeah morals and intentions. You admitted to intending to deceive.

Do the right thing and delete it.

It shows you in very dim light

Here is a little insight for you. I have posted less than precise information before, to test the waters. I admitted to my ruse then as now. Oh, and I have lived almost three-quarters of a century not caring what you think of my morals.

Where you getting this data?

Throughout the 1920s, gas prices averaged 21 to 30 cents per gallon.

So go midway 25 cents a gallon and 1920 to 2020 inflation rate of 2.59346%

25 cents in 1920 would be $3.24

Double the 2.59346% to 5.18692%

25 cents at 5.18692% for 100 yrs would be $39.27479

2020 gas prices averaged less than $2.20