private function counter()
    {
        if (!$this->done && in_array('--count-deliveries-by-user', $this->params)) {
            $this->done = true;

            $counterReport = \common_report_Report::createInfo('List of Users:');

            $helper = new ConsoleTableHelper();
            $helper->addHeader(['TestTaker', 'Deliveries', 'Executions']);
            $helper->addRows($this->getCountersByUsers(!in_array('--open-out', $this->params)));
            $counterReport->add($helper->generateReport());

            $this->report->add($counterReport);
        }
    }