CREATE TABLE table_203_161 (id NUMBER, "pos." CLOB, "div." NUMBER, "no." NUMBER, "team" CLOB, "drivers" CLOB, "car" CLOB, "laps" NUMBER, "qual.\ pos." NUMBER)

how many teams are in the top five positions ?
SELECT COUNT(DISTINCT "team") FROM table_203_161 WHERE "pos." <= 5
SELECT COUNT(DISTINCT "team") FROM "table_203_161" WHERE "pos." <= 5