CREATE TABLE table_204_771 (id DECIMAL, "rank" DECIMAL, "nation" TEXT, "gold" DECIMAL, "silver" DECIMAL, "bronze" DECIMAL, "total" DECIMAL)

how many countries in this competition had more than two silver medals ?
SELECT COUNT("nation") FROM table_204_771 WHERE "silver" > 2
SELECT COUNT("nation") FROM "table_204_771" WHERE "silver" > 2