Tag History, retrive logged data no aggregation (IGN 7.9.5)

I’m currently trying to retrive some data using tag history binding on a bar-chart component.
But no matter what I do, I allways get one sample more than I’m asking for.

Barchart - dataset:

DB browse dataset:

The last value you see in the dataset viewer is the current value. It hasn’t been stored to the DB yet.

Is there any way to surpress the last value, so that it isnt displayed in the barchart?