CREATE TABLE table_15315 ("Year" CLOB, "Start" CLOB, "Qual" CLOB, "Rank" CLOB, "Finish" CLOB, "Laps" FLOAT)

What is the average lap of the race with a 23 finish?
SELECT AVG("Laps") FROM table_15315 WHERE "Finish" = '23'
SELECT AVG("Laps") FROM "table_15315" WHERE "Finish" = '23'