CREATE TABLE table_52990 ("Constructor" TEXT, "Chassis" TEXT, "Engine" TEXT, "Tyres" TEXT, "Driver" TEXT, "Rounds" TEXT)

How many rounds did geoff lees drive with chassis of n180?
SELECT "Rounds" FROM table_52990 WHERE "Chassis" = 'n180' AND "Driver" = 'geoff lees'
SELECT "Rounds" FROM "table_52990" WHERE "Chassis" = 'n180' AND "Driver" = 'geoff lees'