Automatically adjust bar sizes in clustered bar chart

Hi there!

I am trying to plot some sales data by the top 10 customers, and for some reason the bar chart sizes all look the same even though the sales amounts are different. In the attached screenshot, I have hidden the customer names, but for the bar sizes, is there a way where they can automatically adjust so that the first bar is the longest, with the last bar being shortest?

Any help is greatly appreciated!