Anyone else noticed these graphs are changed in time ?

So today it says the bottom of the graph is 2,48 million.

But in a few weeks time this same point, by then moved to the left of course, will be a higher number (well it worked that way sofar)..

It is like they discover, over time, they where wrong and adjust the numbers.

Several weeks ago the lowest number in this graph was around 2,3 million.

Somehow that same point in time is now depicting a way higher number 🤷‍♂️

Even the current bottom is higher than that 2,3 million..