ปีไหนมี 3 แต้มสูงสุด ก็ไม่ต้องใช้ทุกตาราง
Which is the highest year that has 3 points?It is not neccessary to use all the tables.
 table_name_28:  (year [ INTEGER ] points [ VARCHAR) ]
SELECT MAX(year) FROM table_name_28 WHERE points = 3