CREATE TABLE table_203_576 (id NUMBER, "rank" NUMBER, "nation" CLOB, "gold" NUMBER, "silver" NUMBER, "bronze" NUMBER, "total" NUMBER)

how many countries won more silver medals than japan ?
SELECT COUNT("nation") FROM table_203_576 WHERE "silver" > (SELECT "silver" FROM table_203_576 WHERE "nation" = 'japan')
SELECT COUNT("nation") FROM "table_203_576" WHERE "silver" > (SELECT "silver" FROM "table_203_576" WHERE "nation" = 'japan')