CREATE TABLE table_13660 ("Year" CLOB, "Start" CLOB, "Qual" CLOB, "Rank" CLOB, "Finish" CLOB, "Laps" FLOAT)

Which Laps have a Finish of 15?
SELECT "Laps" FROM table_13660 WHERE "Finish" = '15'
SELECT "Laps" FROM "table_13660" WHERE "Finish" = '15'