CREATE TABLE table_204_822 (id DECIMAL, "rank" DECIMAL, "nation" TEXT, "gold" DECIMAL, "silver" DECIMAL, "bronze" DECIMAL, "total" DECIMAL)

what number of silver medals was won by the nation with the most gold medals ?
SELECT "silver" FROM table_204_822 ORDER BY "gold" DESC LIMIT 1
SELECT "silver" FROM "table_204_822" ORDER BY "gold" DESC NULLS LAST LIMIT 1