Multiple Attempts and Reporting Completed Courses?

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Can anyone tell me if when using Multiple Attempts if the Learn Center Report will only bring back the most recent completion of a course or it it will bring back all of the attempts?  Also if you use filters within the Learn Center Report, will it only bring back the highest score or the most recent?  I am currently running a learn Center report and selecting specific Instances, within a specific window (start and end date for completions) but the Learn Center is first searching for the highest score, and then will only bring it back in the report