เรตติ้งในปี 1997 คืออะไร?ไม่จำเป็นต้องใช้ตารางทั้งหมด
What was the rating in 1997?It is not neccessary to use all the tables.
 table_17115:  "Year" [ real]  "Network" [ text]  "Lap-by-lap" [ text]  "Host" [ text]  "Ratings" [ text]  "Viewers" [ text] 
SELECT "Ratings" FROM table_17115 WHERE "Year" = '1997'