CREATE TABLE table_203_724 (id DECIMAL, "rank" DECIMAL, "nation" TEXT, "gold" DECIMAL, "silver" DECIMAL, "bronze" DECIMAL, "total" DECIMAL)

what is the only country ranked in the top ten that did not earn a silver medal ?
SELECT "nation" FROM table_203_724 WHERE "rank" <= 10 AND "silver" = 0
SELECT "nation" FROM "table_203_724" WHERE "rank" <= 10 AND "silver" = 0