Report - Cumulative time spent on a request

Report - Cumulative time spent on a request

How can I create a report that will give me a total of time spent on a request?  

Each report I try to create will give me individual lines for each time entry on each request so there are multiple lines per request.  I need to have a report that has one line for each request that is a sum of the time spent.  Is this possible?

Thanks
Theresa      
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