CREATE TABLE table_66818 ("Year" CLOB, "Start" CLOB, "Qual" CLOB, "Rank" CLOB, "Finish" CLOB, "Laps" FLOAT)

How many laps were there when the start was 12?
SELECT COUNT("Laps") FROM table_66818 WHERE "Start" = '12'
SELECT COUNT("Laps") FROM "table_66818" WHERE "Start" = '12'