ผู้เล่นบันทึก 4wi ได้กี่อันด้วยอัตราประหยัด 4.17?ไม่จำเป็นต้องใช้ตารางทั้งหมด
How many 4wi were recorded by the player with an economy of 4.17?It is not neccessary to use all the tables.
 table_30109:  "Player" [ text]  "Matches" [ real]  "Overs" [ text]  "Wickets" [ real]  "Average" [ text]  "Economy" [ text]  "BBI" [ text]  "4wi" [ real] 
SELECT "4wi" FROM table_30109 WHERE "Economy" = '4.17'