CREATE TABLE table_203_70 (id DECIMAL, "rank" DECIMAL, "nation" TEXT, "gold" DECIMAL, "silver" DECIMAL, "bronze" DECIMAL, "total" DECIMAL)

how many nations won at least 10 medals ?
SELECT COUNT("nation") FROM table_203_70 WHERE "total" >= 10
SELECT COUNT("nation") FROM "table_203_70" WHERE "total" >= 10