CREATE TABLE table_name_12 (yards INTEGER, average VARCHAR)
SELECT MAX(yards) FROM table_name_12 WHERE average = 9.5
จำนวนหลาสูงสุดเมื่อค่าเฉลี่ยคือ 9.5 คือเท่าใด?
What is the highest amount of yards when the average is 9.5?