Issue with the right order for data

[GuillaumePower]

Hello,

I don't understand while my X axis with time dimension begins  with the late value (year 2020) on the left to early value (2017) on the right ? Shouldn't begin by the small value to show a cumul with small value to big value ?

I give the data table and the graph below.

Thanks in advance.

[GuillaumePower]

Sorry, I've understood, my cumul was not right.