CREATE TABLE table_15804 ("Year" FLOAT, "Entrant" TEXT, "Chassis" TEXT, "Engine" TEXT, "Pts." FLOAT)

What year did Ecurie Bleue score more than 0 points?
SELECT AVG("Year") FROM table_15804 WHERE "Pts." > '0' AND "Entrant" = 'ecurie bleue'
SELECT AVG("Year") FROM "table_15804" WHERE "Entrant" = 'ecurie bleue' AND "Pts." > '0'