CREATE TABLE table_204_320 (id NUMBER, "rank" NUMBER, "nation" CLOB, "gold" NUMBER, "silver" NUMBER, "bronze" NUMBER, "total" NUMBER)

which countries have the least amount of total medals ?
SELECT "nation" FROM table_204_320 WHERE "total" = (SELECT MIN("total") FROM table_204_320)
SELECT "nation" FROM "table_204_320" WHERE "total" = (SELECT MIN("total") FROM "table_204_320")