CREATE TABLE table_203_481 (id NUMBER, "n\\u00b0" NUMBER, "name" CLOB, "position" CLOB, "date of birth" CLOB, "nationality" CLOB)

which country as the most people on average ?
SELECT "nationality" FROM table_203_481 GROUP BY "nationality" ORDER BY COUNT("n\u00b0") DESC LIMIT 1
SELECT "nationality" FROM "table_203_481" GROUP BY "nationality" ORDER BY COUNT("n\u00b0") DESC FETCH FIRST 1 ROWS ONLY