jasper reports - How to prevent duplication of bar chart in iReport -

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i've tried use chart in ireport first time. i've used bar chart , anytime preview chart see plenty of them, iithink 6. need single 1 there didn't do?
have query : 

select count(*) total_message, `status`, date_format(date_created,'%m') `month` message year(date_created)=$p{year} group `status`, month(date_created) order `status` desc

and have result 

|total message | status | month       | |1             | failed | january     | |10            | sent   | febuary     | |11            | sent   | march       | |123           | sent   | april       | |156           | failed | may         |  ..........

up december.

my serie expression set ${status}

categorie expression ${month}

value expression ${total_message}

can me? reading this!

you didn't provide code, have guess: have put chart in details band, , printing each record in datasource. put chart in non-repeatable band.


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