Here is what you're missing Dude.Well, no.
My avatar was actually trying to show the readers of this particular forum some market context on our pump prices.
The poser 'westwall' has too much confidence in my avatar in his belief he is capable of 'bamboozling' anybody about anything.
Personally, for a lot of my everyday....and even those 'special' day...purchases I like to have some pricing comparatives. I find that that helps me make better decisions in my purchasing. Your habits may be different, good poster 'westwall'.
Petrol in Europe has ALWAYS been more expensive than in the US.
So saying "Look...it's more over there" is basicly saying "Look...the sky is blue"
At their lowest price in the UK, they were paying US equivalent of $1.33 a LITER.
That's roughly four liters per gallon calculated out makes about $5.27 a gallon ... when we were paying two bucks.
So your $40 chart would look basically the same in 2019...but everyone could go further.