CREATE TABLE table_52267 ("Entrant" CLOB, "Constructor" CLOB, "Chassis" CLOB, "Engine" CLOB, "Tyre" CLOB, "Driver" CLOB, "Rounds" CLOB)

How many rounds did Ken Wharton go?
SELECT "Rounds" FROM table_52267 WHERE "Driver" = 'ken wharton'
SELECT "Rounds" FROM "table_52267" WHERE "Driver" = 'ken wharton'