CREATE TABLE table_204_261 (id DECIMAL, "rank" DECIMAL, "nation" TEXT, "gold" DECIMAL, "silver" DECIMAL, "bronze" DECIMAL, "total" DECIMAL)

which nation has the most bronze medals ?
SELECT "nation" FROM table_204_261 ORDER BY "bronze" DESC LIMIT 1
SELECT "nation" FROM "table_204_261" ORDER BY "bronze" DESC NULLS LAST LIMIT 1