Count the number of viewed records.

def count_records(self, record_counter, file):
        """Count the number of viewed records."""
        counter = record_counter
        events_counter = 0
        for record in file.get_records():
            recid = record[2]
            counter[recid] = counter.get(recid, 0) + 1
            events_counter += 1

        self.stat['user_record_events'] = events_counter
        return counter