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I have an image of a plot at https://imgur.com/a/h9OWP6p

Import["https://i.imgur.com/vNqm0Em.png"]

enter image description here

I want to create a plot of it, consistent with the scale in the picture, so I can find the area under the graph on certain intervals.

I followed the steps at How to generate a Graph from a picture of a graph? but I get a completely black picture after I run the command

vertexI = SelectComponents[i, "Count", 10 < # < 100 &]

How can I get the plot I want and find the area under the graph?

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