CREATE TABLE table_49569 ("Location" TEXT, "Year" FLOAT, "Champion" TEXT, "Runner-up" TEXT, "Score" TEXT)

How many years had a location at Forest Hills and a score of 6 3, 6 3 for John McEnroe?
SELECT COUNT("Year") FROM table_49569 WHERE "Location" = 'forest hills' AND "Runner-up" = 'john mcenroe' AND "Score" = '6–3, 6–3'
SELECT COUNT("Year") FROM "table_49569" WHERE "Location" = 'forest hills' AND "Runner-up" = 'john mcenroe' AND "Score" = '6–3, 6–3'