CREATE TABLE table_15672 ("Year" FLOAT, "Entrant" CLOB, "Chassis" CLOB, "Engine" CLOB, "Points" FLOAT)

What year did Cooper Car Company enter?
SELECT AVG("Year") FROM table_15672 WHERE "Entrant" = 'cooper car company'
SELECT AVG("Year") FROM "table_15672" WHERE "Entrant" = 'cooper car company'