Morgan ชนะ The Masters Tournament กี่ครั้งโดยลงเล่นน้อยกว่า 12 นัด?ไม่จำเป็นต้องใช้โต๊ะทั้งหมด
How many times did Morgan win The Masters Tournament with fewer than 12 appearances?It is not neccessary to use all the tables.
 table_13553:  "Tournament" [ text]  "Wins" [ real]  "Top-5" [ real]  "Top-10" [ real]  "Top-25" [ real]  "Events" [ real] 
SELECT AVG("Wins") FROM table_13553 WHERE "Tournament" = 'masters tournament' AND "Events" < '12'