CREATE TABLE table_39728 ("Year" FLOAT, "Entrant" TEXT, "Chassis" TEXT, "Engine" TEXT, "Points" FLOAT)

When is the latest year that an entrant has toro rosso str1 chassis and under 1 point?
SELECT MAX("Year") FROM table_39728 WHERE "Chassis" = 'toro rosso str1' AND "Points" < '1'
SELECT MAX("Year") FROM "table_39728" WHERE "Chassis" = 'toro rosso str1' AND "Points" < '1'