CREATE TABLE table_204_183 (id DECIMAL, "rank" DECIMAL, "nation" TEXT, "gold" DECIMAL, "silver" DECIMAL, "bronze" DECIMAL, "total" DECIMAL)

how many nations have received at least 1 gold medal ?
SELECT COUNT("nation") FROM table_204_183 WHERE "gold" >= 1
SELECT COUNT("nation") FROM "table_204_183" WHERE "gold" >= 1