protected function afterExecute(Gpf_Data_RecordSet $inputResult) {
        $inputResult = parent::afterExecute($inputResult);
        $inputResult->addColumn(self::IMPS);
        $inputResult->addColumn(self::CTR);

        foreach ($inputResult as $record) {
            $clicks =  $record->get(Pap_Db_Table_BannersInRotators::CLICKS);
            $allImp = $record->get(Pap_Db_Table_BannersInRotators::ALL_IMPS);
            $uniqImp = $record->get(Pap_Db_Table_BannersInRotators::UNIQ_IMPS);
            $record->set(self::IMPS, $allImp.' / '.$uniqImp);
            $record->set(self::CTR, '% '.$this->getCTR($clicks,$allImp).' / % '.$this->getCTR($clicks,$uniqImp) );
        }
        return $inputResult;
    }