CREATE TABLE table_41151 ("Year" FLOAT, "Men's singles" TEXT, "Women's singles" TEXT, "Men's doubles" TEXT, "Women's doubles" TEXT, "Mixed doubles" TEXT)

How many years were there a men's double of gy rgy v r s g bor petrovits and a men's single of gy rgy v r s?
SELECT SUM("Year") FROM table_41151 WHERE "Men's doubles" = 'györgy vörös gábor petrovits' AND "Men's singles" = 'györgy vörös'
SELECT SUM("Year") FROM "table_41151" WHERE "Men's doubles" = 'györgy vörös gábor petrovits' AND "Men's singles" = 'györgy vörös'