Filter the counted records.

        Returns: List with record numbers.

def filter_counter(self, counter, min=2, max=100000000):
        """
        Filter the counted records.

        Returns: List with record numbers.
        """
        records_filterd = {}
        counter_all_records = 0
        for item in counter:
            counter_all_records += 1
            if max > counter[item] >= min:
                records_filterd[item] = counter[item]

        self.stat['user_record_events'] = counter_all_records
        self.stat['records_filtered'] = len(records_filterd)
        return records_filterd