CREATE TABLE table_203_497 (id DECIMAL, "rank" DECIMAL, "nation" TEXT, "gold" DECIMAL, "silver" DECIMAL, "bronze" DECIMAL, "total" DECIMAL)

what was the number of silver medals won by pakistan ?
SELECT "silver" FROM table_203_497 WHERE "nation" = 'pakistan'
SELECT "silver" FROM "table_203_497" WHERE "nation" = 'pakistan'