This research used data from the Australian Temperament Project to examine the types and extent of young people's antisocial behaviour at ages 13-14, 15-16 and 17-18 years and explore differing across-time patterns of such behaviour from early to late adolescence. Across all categories of antisocial behaviour, the most common types of antisocial acts in early adolescence were fighting (32%), alcohol use (25%), theft (16%) and property damage (14%). Similar trends emerged in mid adolescence, with rates of cigarette use (28%) and skipping school (27%) relatively common as well. By late adolescence the most common types of antisocial acts were alcohol use (84%), skipping school (43%), cigarette use (39%), fighting (23%), property damage (20%), marijuana use (19%) and driving a car without permission (15%). However generally, few individuals engaged in these antisocial acts more than once, the exceptions being property damage, skipping school, fighting, and most types of substance use.