CREATE TABLE table_name_35 (extra_points INTEGER, points INTEGER)
SELECT AVG(extra_points) FROM table_name_35 WHERE points < 6
คะแนนพิเศษใดคือคะแนนเฉลี่ยที่มีคะแนนน้อยกว่า 6
Whicih Extra points are the average ones that have Points smaller than 6?