'Resolve repetitive table in group of Jasper Report

Please any body can help me with my problem I'll be so glad. I've an issue in group field .I make an group with Directors. My required output is

| Director | Favor | Percentage | |:---- |:------:| -----: | |Executive | 10 | 50% | |Laura | 20 | 40% | |Rayan | 30 | 30% | But the table create a repetitive data header for each data like the below one that is not required.

Director Favor Percentage
Executive 10 50%
Director Favor Percentage
Laura 20 40%
Director Favor Percentage
Rayan 30 30%

Can anyone please help me with this?



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