CREATE TABLE table_71261 ("Year" FLOAT, "Entrant" TEXT, "Chassis" TEXT, "Engine" TEXT, "Points" FLOAT)

How many points are there for a Mclaren m23 chassis later than 1972?
SELECT COUNT("Points") FROM table_71261 WHERE "Year" > '1972' AND "Chassis" = 'mclaren m23'
SELECT COUNT("Points") FROM "table_71261" WHERE "Chassis" = 'mclaren m23' AND "Year" > '1972'