Number of requests created by time report

Number of requests created by time report

Hi all.
I'm trying to create a report to show in a bar graph the number of requests created each day going back 30 days or so. 

When I create the report I also get what appears to be a sort of legend off to the side which I don't need and also the bar width is quite fat and I can't see how to make these smaller.

I am wanting to add this report as a widget to the dashboard but I can only see around 9-10 bars without scrolling.

Cheers!
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